diff --git a/java/src/com/android/inputmethod/latin/BinaryDictionary.java b/java/src/com/android/inputmethod/latin/BinaryDictionary.java
index 2fece7c..d8a94e9 100644
--- a/java/src/com/android/inputmethod/latin/BinaryDictionary.java
+++ b/java/src/com/android/inputmethod/latin/BinaryDictionary.java
@@ -69,7 +69,7 @@
     // Format to get unigram flags from native side via getWordPropertyNative().
     private static final int FORMAT_WORD_PROPERTY_OUTPUT_FLAG_COUNT = 5;
     private static final int FORMAT_WORD_PROPERTY_IS_NOT_A_WORD_INDEX = 0;
-    private static final int FORMAT_WORD_PROPERTY_IS_BLACKLISTED_INDEX = 1;
+    private static final int FORMAT_WORD_PROPERTY_IS_POSSIBLY_OFFENSIVE_INDEX = 1;
     private static final int FORMAT_WORD_PROPERTY_HAS_NGRAMS_INDEX = 2;
     private static final int FORMAT_WORD_PROPERTY_HAS_SHORTCUTS_INDEX = 3;
     private static final int FORMAT_WORD_PROPERTY_IS_BEGINNING_OF_SENTENCE_INDEX = 4;
@@ -195,7 +195,7 @@
             float[] inOutWeightOfLangModelVsSpatialModel);
     private static native boolean addUnigramEntryNative(long dict, int[] word, int probability,
             int[] shortcutTarget, int shortcutProbability, boolean isBeginningOfSentence,
-            boolean isNotAWord, boolean isBlacklisted, int timestamp);
+            boolean isNotAWord, boolean isPossiblyOffensive, int timestamp);
     private static native boolean removeUnigramEntryNative(long dict, int[] word);
     private static native boolean addNgramEntryNative(long dict,
             int[][] prevWordCodePointArrays, boolean[] isBeginningOfSentenceArray,
@@ -402,7 +402,7 @@
                 outNgramProbabilityInfo, outShortcutTargets, outShortcutProbabilities);
         return new WordProperty(codePoints,
                 outFlags[FORMAT_WORD_PROPERTY_IS_NOT_A_WORD_INDEX],
-                outFlags[FORMAT_WORD_PROPERTY_IS_BLACKLISTED_INDEX],
+                outFlags[FORMAT_WORD_PROPERTY_IS_POSSIBLY_OFFENSIVE_INDEX],
                 outFlags[FORMAT_WORD_PROPERTY_HAS_NGRAMS_INDEX],
                 outFlags[FORMAT_WORD_PROPERTY_HAS_SHORTCUTS_INDEX],
                 outFlags[FORMAT_WORD_PROPERTY_IS_BEGINNING_OF_SENTENCE_INDEX], outProbabilityInfo,
@@ -439,7 +439,7 @@
     public boolean addUnigramEntry(final String word, final int probability,
             final String shortcutTarget, final int shortcutProbability,
             final boolean isBeginningOfSentence, final boolean isNotAWord,
-            final boolean isBlacklisted, final int timestamp) {
+            final boolean isPossiblyOffensive, final int timestamp) {
         if (word == null || (word.isEmpty() && !isBeginningOfSentence)) {
             return false;
         }
@@ -447,7 +447,8 @@
         final int[] shortcutTargetCodePoints = (shortcutTarget != null) ?
                 StringUtils.toCodePointArray(shortcutTarget) : null;
         if (!addUnigramEntryNative(mNativeDict, codePoints, probability, shortcutTargetCodePoints,
-                shortcutProbability, isBeginningOfSentence, isNotAWord, isBlacklisted, timestamp)) {
+                shortcutProbability, isBeginningOfSentence, isNotAWord, isPossiblyOffensive,
+                timestamp)) {
             return false;
         }
         mHasUpdated = true;
diff --git a/java/src/com/android/inputmethod/latin/ContactsBinaryDictionary.java b/java/src/com/android/inputmethod/latin/ContactsBinaryDictionary.java
index 78c6cbd..0542c4b 100644
--- a/java/src/com/android/inputmethod/latin/ContactsBinaryDictionary.java
+++ b/java/src/com/android/inputmethod/latin/ContactsBinaryDictionary.java
@@ -137,7 +137,7 @@
             }
             runGCIfRequiredLocked(true /* mindsBlockByGC */);
             addUnigramLocked(word, FREQUENCY_FOR_CONTACTS, null /* shortcut */,
-                    0 /* shortcutFreq */, false /* isNotAWord */, false /* isBlacklisted */,
+                    0 /* shortcutFreq */, false /* isNotAWord */, false /* isPossiblyOffensive */,
                     BinaryDictionary.NOT_A_VALID_TIMESTAMP);
         }
     }
@@ -238,7 +238,8 @@
                     runGCIfRequiredLocked(true /* mindsBlockByGC */);
                     addUnigramLocked(word, FREQUENCY_FOR_CONTACTS,
                             null /* shortcut */, 0 /* shortcutFreq */, false /* isNotAWord */,
-                            false /* isBlacklisted */, BinaryDictionary.NOT_A_VALID_TIMESTAMP);
+                            false /* isPossiblyOffensive */,
+                            BinaryDictionary.NOT_A_VALID_TIMESTAMP);
                     if (!ngramContext.isValid() && mUseFirstLastBigrams) {
                         runGCIfRequiredLocked(true /* mindsBlockByGC */);
                         addNgramEntryLocked(ngramContext, word, FREQUENCY_FOR_CONTACTS_BIGRAM,
diff --git a/java/src/com/android/inputmethod/latin/DictionaryFacilitator.java b/java/src/com/android/inputmethod/latin/DictionaryFacilitator.java
index 08035df..46ddccd 100644
--- a/java/src/com/android/inputmethod/latin/DictionaryFacilitator.java
+++ b/java/src/com/android/inputmethod/latin/DictionaryFacilitator.java
@@ -809,7 +809,7 @@
             contextualDict.addUnigramEntryWithCheckingDistracter(
                     subPhraseStr, probability, null /* shortcutTarget */,
                     Dictionary.NOT_A_PROBABILITY /* shortcutFreq */,
-                    false /* isNotAWord */, false /* isBlacklisted */,
+                    false /* isNotAWord */, false /* isPossiblyOffensive */,
                     BinaryDictionary.NOT_A_VALID_TIMESTAMP,
                     DistracterFilter.EMPTY_DISTRACTER_FILTER);
             contextualDict.addNgramEntry(ngramContext, subPhraseStr,
@@ -819,7 +819,7 @@
                 contextualDict.addUnigramEntryWithCheckingDistracter(
                         phrase[i], probability, null /* shortcutTarget */,
                         Dictionary.NOT_A_PROBABILITY /* shortcutFreq */,
-                        false /* isNotAWord */, false /* isBlacklisted */,
+                        false /* isNotAWord */, false /* isPossiblyOffensive */,
                         BinaryDictionary.NOT_A_VALID_TIMESTAMP,
                         DistracterFilter.EMPTY_DISTRACTER_FILTER);
                 contextualDict.addNgramEntry(ngramContext, phrase[i],
diff --git a/java/src/com/android/inputmethod/latin/ExpandableBinaryDictionary.java b/java/src/com/android/inputmethod/latin/ExpandableBinaryDictionary.java
index d58373f..66eeeca 100644
--- a/java/src/com/android/inputmethod/latin/ExpandableBinaryDictionary.java
+++ b/java/src/com/android/inputmethod/latin/ExpandableBinaryDictionary.java
@@ -316,22 +316,22 @@
      */
     public void addUnigramEntryWithCheckingDistracter(final String word, final int frequency,
             final String shortcutTarget, final int shortcutFreq, final boolean isNotAWord,
-            final boolean isBlacklisted, final int timestamp,
+            final boolean isPossiblyOffensive, final int timestamp,
             @Nonnull final DistracterFilter distracterFilter) {
         updateDictionaryWithWriteLockIfWordIsNotADistracter(new Runnable() {
             @Override
             public void run() {
                 addUnigramLocked(word, frequency, shortcutTarget, shortcutFreq,
-                        isNotAWord, isBlacklisted, timestamp);
+                        isNotAWord, isPossiblyOffensive, timestamp);
             }
         }, word, distracterFilter);
     }
 
     protected void addUnigramLocked(final String word, final int frequency,
             final String shortcutTarget, final int shortcutFreq, final boolean isNotAWord,
-            final boolean isBlacklisted, final int timestamp) {
+            final boolean isPossiblyOffensive, final int timestamp) {
         if (!mBinaryDictionary.addUnigramEntry(word, frequency, shortcutTarget, shortcutFreq,
-                false /* isBeginningOfSentence */, isNotAWord, isBlacklisted, timestamp)) {
+                false /* isBeginningOfSentence */, isNotAWord, isPossiblyOffensive, timestamp)) {
             Log.e(TAG, "Cannot add unigram entry. word: " + word);
         }
     }
diff --git a/java/src/com/android/inputmethod/latin/UserBinaryDictionary.java b/java/src/com/android/inputmethod/latin/UserBinaryDictionary.java
index 21014b3..9332e4a 100644
--- a/java/src/com/android/inputmethod/latin/UserBinaryDictionary.java
+++ b/java/src/com/android/inputmethod/latin/UserBinaryDictionary.java
@@ -257,12 +257,14 @@
                     runGCIfRequiredLocked(true /* mindsBlockByGC */);
                     addUnigramLocked(word, adjustedFrequency, null /* shortcutTarget */,
                             0 /* shortcutFreq */, false /* isNotAWord */,
-                            false /* isBlacklisted */, BinaryDictionary.NOT_A_VALID_TIMESTAMP);
+                            false /* isPossiblyOffensive */,
+                            BinaryDictionary.NOT_A_VALID_TIMESTAMP);
                     if (null != shortcut && shortcut.length() <= MAX_WORD_LENGTH) {
                         runGCIfRequiredLocked(true /* mindsBlockByGC */);
                         addUnigramLocked(shortcut, adjustedFrequency, word,
                                 USER_DICT_SHORTCUT_FREQUENCY, true /* isNotAWord */,
-                                false /* isBlacklisted */, BinaryDictionary.NOT_A_VALID_TIMESTAMP);
+                                false /* isPossiblyOffensive */,
+                                BinaryDictionary.NOT_A_VALID_TIMESTAMP);
                     }
                 }
                 cursor.moveToNext();
diff --git a/java/src/com/android/inputmethod/latin/makedict/FormatSpec.java b/java/src/com/android/inputmethod/latin/makedict/FormatSpec.java
index 34edfa0..5b52300 100644
--- a/java/src/com/android/inputmethod/latin/makedict/FormatSpec.java
+++ b/java/src/com/android/inputmethod/latin/makedict/FormatSpec.java
@@ -93,7 +93,7 @@
      * s | has shortcut targets ?      1 bit, 1 = yes, 0 = no   : FLAG_HAS_SHORTCUT_TARGETS
      *   | has bigrams ?               1 bit, 1 = yes, 0 = no   : FLAG_HAS_BIGRAMS
      *   | is not a word ?             1 bit, 1 = yes, 0 = no   : FLAG_IS_NOT_A_WORD
-     *   | is blacklisted ?            1 bit, 1 = yes, 0 = no   : FLAG_IS_BLACKLISTED
+     *   | is possibly offensive ?     1 bit, 1 = yes, 0 = no   : FLAG_IS_POSSIBLY_OFFENSIVE
      *
      * c | IF FLAG_HAS_MULTIPLE_CHARS
      * h |   char, char, char, char    n * (1 or 3 bytes) : use PtNodeInfo for i/o helpers
@@ -197,7 +197,7 @@
     static final int FLAG_HAS_SHORTCUT_TARGETS = 0x08;
     static final int FLAG_HAS_BIGRAMS = 0x04;
     static final int FLAG_IS_NOT_A_WORD = 0x02;
-    static final int FLAG_IS_BLACKLISTED = 0x01;
+    static final int FLAG_IS_POSSIBLY_OFFENSIVE = 0x01;
 
     static final int FLAG_BIGRAM_SHORTCUT_ATTR_HAS_NEXT = 0x80;
     static final int FLAG_BIGRAM_ATTR_OFFSET_NEGATIVE = 0x40;
diff --git a/java/src/com/android/inputmethod/latin/makedict/WordProperty.java b/java/src/com/android/inputmethod/latin/makedict/WordProperty.java
index 1e6cadf..5c6d8f5 100644
--- a/java/src/com/android/inputmethod/latin/makedict/WordProperty.java
+++ b/java/src/com/android/inputmethod/latin/makedict/WordProperty.java
@@ -41,7 +41,7 @@
     // TODO: Support mIsBeginningOfSentence.
     public final boolean mIsBeginningOfSentence;
     public final boolean mIsNotAWord;
-    public final boolean mIsBlacklistEntry;
+    public final boolean mIsPossiblyOffensive;
     public final boolean mHasShortcuts;
     public final boolean mHasNgrams;
 
@@ -52,7 +52,7 @@
     public WordProperty(final String word, final ProbabilityInfo probabilityInfo,
             final ArrayList<WeightedString> shortcutTargets,
             @Nullable final ArrayList<WeightedString> bigrams,
-            final boolean isNotAWord, final boolean isBlacklistEntry) {
+            final boolean isNotAWord, final boolean isPossiblyOffensive) {
         mWord = word;
         mProbabilityInfo = probabilityInfo;
         mShortcutTargets = shortcutTargets;
@@ -69,7 +69,7 @@
         }
         mIsBeginningOfSentence = false;
         mIsNotAWord = isNotAWord;
-        mIsBlacklistEntry = isBlacklistEntry;
+        mIsPossiblyOffensive = isPossiblyOffensive;
         mHasNgrams = bigrams != null && !bigrams.isEmpty();
         mHasShortcuts = shortcutTargets != null && !shortcutTargets.isEmpty();
     }
@@ -85,7 +85,7 @@
     // Construct word property using information from native code.
     // This represents invalid word when the probability is BinaryDictionary.NOT_A_PROBABILITY.
     public WordProperty(final int[] codePoints, final boolean isNotAWord,
-            final boolean isBlacklisted, final boolean hasBigram, final boolean hasShortcuts,
+            final boolean isPossiblyOffensive, final boolean hasBigram, final boolean hasShortcuts,
             final boolean isBeginningOfSentence, final int[] probabilityInfo,
             final ArrayList<int[][]> ngramPrevWordsArray,
             final ArrayList<boolean[]> outNgramPrevWordIsBeginningOfSentenceArray,
@@ -98,7 +98,7 @@
         final ArrayList<NgramProperty> ngrams = new ArrayList<>();
         mIsBeginningOfSentence = isBeginningOfSentence;
         mIsNotAWord = isNotAWord;
-        mIsBlacklistEntry = isBlacklisted;
+        mIsPossiblyOffensive = isPossiblyOffensive;
         mHasShortcuts = hasShortcuts;
         mHasNgrams = hasBigram;
 
@@ -150,7 +150,7 @@
                 word.mShortcutTargets,
                 word.mNgrams,
                 word.mIsNotAWord,
-                word.mIsBlacklistEntry
+                word.mIsPossiblyOffensive
         });
     }
 
@@ -180,7 +180,7 @@
         WordProperty w = (WordProperty)o;
         return mProbabilityInfo.equals(w.mProbabilityInfo) && mWord.equals(w.mWord)
                 && mShortcutTargets.equals(w.mShortcutTargets) && equals(mNgrams, w.mNgrams)
-                && mIsNotAWord == w.mIsNotAWord && mIsBlacklistEntry == w.mIsBlacklistEntry
+                && mIsNotAWord == w.mIsNotAWord && mIsPossiblyOffensive == w.mIsPossiblyOffensive
                 && mHasNgrams == w.mHasNgrams && mHasShortcuts && w.mHasNgrams;
     }
 
diff --git a/java/src/com/android/inputmethod/latin/utils/CombinedFormatUtils.java b/java/src/com/android/inputmethod/latin/utils/CombinedFormatUtils.java
index 7e8e559..2482462 100644
--- a/java/src/com/android/inputmethod/latin/utils/CombinedFormatUtils.java
+++ b/java/src/com/android/inputmethod/latin/utils/CombinedFormatUtils.java
@@ -63,7 +63,7 @@
         if (wordProperty.mIsNotAWord) {
             builder.append("," + NOT_A_WORD_TAG + "=true");
         }
-        if (wordProperty.mIsBlacklistEntry) {
+        if (wordProperty.mIsPossiblyOffensive) {
             builder.append("," + BLACKLISTED_TAG + "=true");
         }
         builder.append("\n");
diff --git a/java/src/com/android/inputmethod/latin/utils/LanguageModelParam.java b/java/src/com/android/inputmethod/latin/utils/LanguageModelParam.java
index 73aefb8..5560d2f 100644
--- a/java/src/com/android/inputmethod/latin/utils/LanguageModelParam.java
+++ b/java/src/com/android/inputmethod/latin/utils/LanguageModelParam.java
@@ -54,7 +54,7 @@
     public final int mBigramProbability;
     public final int mShortcutProbability;
     public final boolean mIsNotAWord;
-    public final boolean mIsBlacklisted;
+    public final boolean mIsPossiblyOffensive;
     // Time stamp in seconds.
     public final int mTimestamp;
 
@@ -78,7 +78,7 @@
         mBigramProbability = bigramProbability;
         mShortcutProbability = Dictionary.NOT_A_PROBABILITY;
         mIsNotAWord = false;
-        mIsBlacklisted = false;
+        mIsPossiblyOffensive = false;
         mTimestamp = timestamp;
     }
 
diff --git a/native/jni/com_android_inputmethod_latin_BinaryDictionary.cpp b/native/jni/com_android_inputmethod_latin_BinaryDictionary.cpp
index f8dadb4..b01acea 100644
--- a/native/jni/com_android_inputmethod_latin_BinaryDictionary.cpp
+++ b/native/jni/com_android_inputmethod_latin_BinaryDictionary.cpp
@@ -358,7 +358,7 @@
 
 static bool latinime_BinaryDictionary_addUnigramEntry(JNIEnv *env, jclass clazz, jlong dict,
         jintArray word, jint probability, jintArray shortcutTarget, jint shortcutProbability,
-        jboolean isBeginningOfSentence, jboolean isNotAWord, jboolean isBlacklisted,
+        jboolean isBeginningOfSentence, jboolean isNotAWord, jboolean isPossiblyOffensive,
         jint timestamp) {
     Dictionary *dictionary = reinterpret_cast<Dictionary *>(dict);
     if (!dictionary) {
@@ -377,8 +377,8 @@
     }
     // Use 1 for count to indicate the word has inputted.
     const UnigramProperty unigramProperty(isBeginningOfSentence, isNotAWord,
-            isBlacklisted, probability, HistoricalInfo(timestamp, 0 /* level */, 1 /* count */),
-            std::move(shortcuts));
+            isPossiblyOffensive, probability, HistoricalInfo(timestamp, 0 /* level */,
+            1 /* count */), std::move(shortcuts));
     return dictionary->addUnigramEntry(CodePointArrayView(codePoints, codePointCount),
             &unigramProperty);
 }
@@ -480,8 +480,8 @@
             env->GetFieldID(languageModelParamClass, "mShortcutProbability", "I");
     jfieldID isNotAWordFieldId =
             env->GetFieldID(languageModelParamClass, "mIsNotAWord", "Z");
-    jfieldID isBlacklistedFieldId =
-            env->GetFieldID(languageModelParamClass, "mIsBlacklisted", "Z");
+    jfieldID isPossiblyOffensiveFieldId =
+            env->GetFieldID(languageModelParamClass, "mIsPossiblyOffensive", "Z");
     env->DeleteLocalRef(languageModelParamClass);
 
     for (int i = startIndex; i < languageModelParamCount; ++i) {
@@ -504,7 +504,8 @@
         jint unigramProbability = env->GetIntField(languageModelParam, unigramProbabilityFieldId);
         jint timestamp = env->GetIntField(languageModelParam, timestampFieldId);
         jboolean isNotAWord = env->GetBooleanField(languageModelParam, isNotAWordFieldId);
-        jboolean isBlacklisted = env->GetBooleanField(languageModelParam, isBlacklistedFieldId);
+        jboolean isPossiblyOffensive = env->GetBooleanField(languageModelParam,
+                isPossiblyOffensiveFieldId);
         jintArray shortcutTarget = static_cast<jintArray>(
                 env->GetObjectField(languageModelParam, shortcutTargetFieldId));
         std::vector<UnigramProperty::ShortcutProperty> shortcuts;
@@ -519,7 +520,7 @@
         }
         // Use 1 for count to indicate the word has inputted.
         const UnigramProperty unigramProperty(false /* isBeginningOfSentence */, isNotAWord,
-                isBlacklisted, unigramProbability,
+                isPossiblyOffensive, unigramProbability,
                 HistoricalInfo(timestamp, 0 /* level */, 1 /* count */), std::move(shortcuts));
         dictionary->addUnigramEntry(CodePointArrayView(word1CodePoints, word1Length),
                 &unigramProperty);
diff --git a/native/jni/src/suggest/core/dictionary/property/unigram_property.h b/native/jni/src/suggest/core/dictionary/property/unigram_property.h
index 5ed2e26..f194f97 100644
--- a/native/jni/src/suggest/core/dictionary/property/unigram_property.h
+++ b/native/jni/src/suggest/core/dictionary/property/unigram_property.h
@@ -49,21 +49,44 @@
     };
 
     UnigramProperty()
-            : mRepresentsBeginningOfSentence(false), mIsNotAWord(false), mIsBlacklisted(false),
-              mProbability(NOT_A_PROBABILITY), mHistoricalInfo(), mShortcuts() {}
+            : mRepresentsBeginningOfSentence(false), mIsNotAWord(false),
+              mIsBlacklisted(false), mIsPossiblyOffensive(false), mProbability(NOT_A_PROBABILITY),
+              mHistoricalInfo(), mShortcuts() {}
 
+    // In contexts which do not support the Blacklisted flag (v2, v4<403)
     UnigramProperty(const bool representsBeginningOfSentence, const bool isNotAWord,
-            const bool isBlacklisted, const int probability, const HistoricalInfo historicalInfo,
-            const std::vector<ShortcutProperty> &&shortcuts)
+            const bool isPossiblyOffensive, const int probability,
+            const HistoricalInfo historicalInfo, const std::vector<ShortcutProperty> &&shortcuts)
             : mRepresentsBeginningOfSentence(representsBeginningOfSentence),
-              mIsNotAWord(isNotAWord), mIsBlacklisted(isBlacklisted), mProbability(probability),
+              mIsNotAWord(isNotAWord), mIsBlacklisted(false),
+              mIsPossiblyOffensive(isPossiblyOffensive), mProbability(probability),
               mHistoricalInfo(historicalInfo), mShortcuts(std::move(shortcuts)) {}
 
-    // Without shortcuts.
+    // Without shortcuts, in contexts which do not support the Blacklisted flag (v2, v4<403)
     UnigramProperty(const bool representsBeginningOfSentence, const bool isNotAWord,
-            const bool isBlacklisted, const int probability, const HistoricalInfo historicalInfo)
+            const bool isPossiblyOffensive, const int probability,
+            const HistoricalInfo historicalInfo)
             : mRepresentsBeginningOfSentence(representsBeginningOfSentence),
-              mIsNotAWord(isNotAWord), mIsBlacklisted(isBlacklisted), mProbability(probability),
+              mIsNotAWord(isNotAWord), mIsBlacklisted(false),
+              mIsPossiblyOffensive(isPossiblyOffensive), mProbability(probability),
+              mHistoricalInfo(historicalInfo), mShortcuts() {}
+
+    // In contexts which DO support the Blacklisted flag (v403)
+    UnigramProperty(const bool representsBeginningOfSentence, const bool isNotAWord,
+            const bool isBlacklisted, const bool isPossiblyOffensive, const int probability,
+            const HistoricalInfo historicalInfo, const std::vector<ShortcutProperty> &&shortcuts)
+            : mRepresentsBeginningOfSentence(representsBeginningOfSentence),
+              mIsNotAWord(isNotAWord), mIsBlacklisted(isBlacklisted),
+              mIsPossiblyOffensive(isPossiblyOffensive), mProbability(probability),
+              mHistoricalInfo(historicalInfo), mShortcuts(std::move(shortcuts)) {}
+
+    // Without shortcuts, in contexts which DO support the Blacklisted flag (v403)
+    UnigramProperty(const bool representsBeginningOfSentence, const bool isNotAWord,
+            const bool isBlacklisted, const bool isPossiblyOffensive, const int probability,
+            const HistoricalInfo historicalInfo)
+            : mRepresentsBeginningOfSentence(representsBeginningOfSentence),
+              mIsNotAWord(isNotAWord), mIsBlacklisted(isBlacklisted),
+              mIsPossiblyOffensive(isPossiblyOffensive), mProbability(probability),
               mHistoricalInfo(historicalInfo), mShortcuts() {}
 
     bool representsBeginningOfSentence() const {
@@ -74,13 +97,12 @@
         return mIsNotAWord;
     }
 
-    bool isBlacklisted() const {
-        return mIsBlacklisted;
+    bool isPossiblyOffensive() const {
+        return mIsPossiblyOffensive;
     }
 
-    bool isPossiblyOffensive() const {
-        // TODO: Have dedicated flag.
-        return mProbability == 0;
+    bool isBlacklisted() const {
+        return mIsBlacklisted;
     }
 
     bool hasShortcuts() const {
@@ -106,6 +128,7 @@
     const bool mRepresentsBeginningOfSentence;
     const bool mIsNotAWord;
     const bool mIsBlacklisted;
+    const bool mIsPossiblyOffensive;
     const int mProbability;
     const HistoricalInfo mHistoricalInfo;
     const std::vector<ShortcutProperty> mShortcuts;
diff --git a/native/jni/src/suggest/core/dictionary/property/word_property.cpp b/native/jni/src/suggest/core/dictionary/property/word_property.cpp
index caac8fe..a707f1b 100644
--- a/native/jni/src/suggest/core/dictionary/property/word_property.cpp
+++ b/native/jni/src/suggest/core/dictionary/property/word_property.cpp
@@ -28,7 +28,7 @@
     JniDataUtils::outputCodePoints(env, outCodePoints, 0 /* start */,
             MAX_WORD_LENGTH /* maxLength */, mCodePoints.data(), mCodePoints.size(),
             false /* needsNullTermination */);
-    jboolean flags[] = {mUnigramProperty.isNotAWord(), mUnigramProperty.isBlacklisted(),
+    jboolean flags[] = {mUnigramProperty.isNotAWord(), mUnigramProperty.isPossiblyOffensive(),
             !mNgrams.empty(), mUnigramProperty.hasShortcuts(),
             mUnigramProperty.representsBeginningOfSentence()};
     env->SetBooleanArrayRegion(outFlags, 0 /* start */, NELEMS(flags), flags);
diff --git a/native/jni/src/suggest/core/dictionary/word_attributes.h b/native/jni/src/suggest/core/dictionary/word_attributes.h
index 6e9da35..5351e7d 100644
--- a/native/jni/src/suggest/core/dictionary/word_attributes.h
+++ b/native/jni/src/suggest/core/dictionary/word_attributes.h
@@ -43,6 +43,14 @@
         return mIsNotAWord;
     }
 
+    // Whether or not a word is possibly offensive.
+    // * Static dictionaries <v202, as well as dynamic dictionaries <v403, will set this based on
+    //   whether or not the probability of the word is zero.
+    // * Static dictionaries >=v203 will set this based on the IS_POSSIBLY_OFFENSIVE PtNode flag.
+    // * Dynamic dictionaries >=v403 will set this based on the IS_POSSIBLY_OFFENSIVE language model
+    //   flag (the PtNode flag IS_BLACKLISTED is ignored and kept as zero)
+    //
+    // See the ::getWordAttributes function for each of these dictionary policies for more details.
     bool isPossiblyOffensive() const {
         return mIsPossiblyOffensive;
     }
diff --git a/native/jni/src/suggest/policyimpl/dictionary/header/header_policy.cpp b/native/jni/src/suggest/policyimpl/dictionary/header/header_policy.cpp
index 8fb256c..300e96c 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/header/header_policy.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/header/header_policy.cpp
@@ -30,6 +30,7 @@
 const char *const HeaderPolicy::LAST_DECAYED_TIME_KEY = "LAST_DECAYED_TIME";
 const char *const HeaderPolicy::UNIGRAM_COUNT_KEY = "UNIGRAM_COUNT";
 const char *const HeaderPolicy::BIGRAM_COUNT_KEY = "BIGRAM_COUNT";
+const char *const HeaderPolicy::TRIGRAM_COUNT_KEY = "TRIGRAM_COUNT";
 const char *const HeaderPolicy::EXTENDED_REGION_SIZE_KEY = "EXTENDED_REGION_SIZE";
 // Historical info is information that is needed to support decaying such as timestamp, level and
 // count.
@@ -94,12 +95,11 @@
 }
 
 bool HeaderPolicy::fillInAndWriteHeaderToBuffer(const bool updatesLastDecayedTime,
-        const int unigramCount, const int bigramCount,
-        const int extendedRegionSize, BufferWithExtendableBuffer *const outBuffer) const {
+        const EntryCounts &entryCounts, const int extendedRegionSize,
+        BufferWithExtendableBuffer *const outBuffer) const {
     int writingPos = 0;
     DictionaryHeaderStructurePolicy::AttributeMap attributeMapToWrite(mAttributeMap);
-    fillInHeader(updatesLastDecayedTime, unigramCount, bigramCount,
-            extendedRegionSize, &attributeMapToWrite);
+    fillInHeader(updatesLastDecayedTime, entryCounts, extendedRegionSize, &attributeMapToWrite);
     if (!HeaderReadWriteUtils::writeDictionaryVersion(outBuffer, mDictFormatVersion,
             &writingPos)) {
         return false;
@@ -126,11 +126,15 @@
     return true;
 }
 
-void HeaderPolicy::fillInHeader(const bool updatesLastDecayedTime, const int unigramCount,
-        const int bigramCount, const int extendedRegionSize,
+void HeaderPolicy::fillInHeader(const bool updatesLastDecayedTime,
+        const EntryCounts &entryCounts, const int extendedRegionSize,
         DictionaryHeaderStructurePolicy::AttributeMap *outAttributeMap) const {
-    HeaderReadWriteUtils::setIntAttribute(outAttributeMap, UNIGRAM_COUNT_KEY, unigramCount);
-    HeaderReadWriteUtils::setIntAttribute(outAttributeMap, BIGRAM_COUNT_KEY, bigramCount);
+    HeaderReadWriteUtils::setIntAttribute(outAttributeMap, UNIGRAM_COUNT_KEY,
+            entryCounts.getUnigramCount());
+    HeaderReadWriteUtils::setIntAttribute(outAttributeMap, BIGRAM_COUNT_KEY,
+            entryCounts.getBigramCount());
+    HeaderReadWriteUtils::setIntAttribute(outAttributeMap, TRIGRAM_COUNT_KEY,
+            entryCounts.getTrigramCount());
     HeaderReadWriteUtils::setIntAttribute(outAttributeMap, EXTENDED_REGION_SIZE_KEY,
             extendedRegionSize);
     // Set the current time as the generation time.
diff --git a/native/jni/src/suggest/policyimpl/dictionary/header/header_policy.h b/native/jni/src/suggest/policyimpl/dictionary/header/header_policy.h
index 836bbe5..44c2f44 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/header/header_policy.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/header/header_policy.h
@@ -22,6 +22,7 @@
 #include "defines.h"
 #include "suggest/core/policy/dictionary_header_structure_policy.h"
 #include "suggest/policyimpl/dictionary/header/header_read_write_utils.h"
+#include "suggest/policyimpl/dictionary/utils/entry_counters.h"
 #include "suggest/policyimpl/dictionary/utils/format_utils.h"
 #include "utils/char_utils.h"
 #include "utils/time_keeper.h"
@@ -49,6 +50,8 @@
                       UNIGRAM_COUNT_KEY, 0 /* defaultValue */)),
               mBigramCount(HeaderReadWriteUtils::readIntAttributeValue(&mAttributeMap,
                       BIGRAM_COUNT_KEY, 0 /* defaultValue */)),
+              mTrigramCount(HeaderReadWriteUtils::readIntAttributeValue(&mAttributeMap,
+                      TRIGRAM_COUNT_KEY, 0 /* defaultValue */)),
               mExtendedRegionSize(HeaderReadWriteUtils::readIntAttributeValue(&mAttributeMap,
                       EXTENDED_REGION_SIZE_KEY, 0 /* defaultValue */)),
               mHasHistoricalInfoOfWords(HeaderReadWriteUtils::readBoolAttributeValue(
@@ -60,6 +63,8 @@
                       &mAttributeMap, MAX_UNIGRAM_COUNT_KEY, DEFAULT_MAX_UNIGRAM_COUNT)),
               mMaxBigramCount(HeaderReadWriteUtils::readIntAttributeValue(
                       &mAttributeMap, MAX_BIGRAM_COUNT_KEY, DEFAULT_MAX_BIGRAM_COUNT)),
+              mMaxTrigramCount(HeaderReadWriteUtils::readIntAttributeValue(
+                      &mAttributeMap, MAX_TRIGRAM_COUNT_KEY, DEFAULT_MAX_TRIGRAM_COUNT)),
               mCodePointTable(HeaderReadWriteUtils::readCodePointTable(&mAttributeMap)) {}
 
     // Constructs header information using an attribute map.
@@ -77,7 +82,7 @@
                       DATE_KEY, TimeKeeper::peekCurrentTime() /* defaultValue */)),
               mLastDecayedTime(HeaderReadWriteUtils::readIntAttributeValue(&mAttributeMap,
                       DATE_KEY, TimeKeeper::peekCurrentTime() /* defaultValue */)),
-              mUnigramCount(0), mBigramCount(0), mExtendedRegionSize(0),
+              mUnigramCount(0), mBigramCount(0), mTrigramCount(0), mExtendedRegionSize(0),
               mHasHistoricalInfoOfWords(HeaderReadWriteUtils::readBoolAttributeValue(
                       &mAttributeMap, HAS_HISTORICAL_INFO_KEY, false /* defaultValue */)),
               mForgettingCurveProbabilityValuesTableId(HeaderReadWriteUtils::readIntAttributeValue(
@@ -87,6 +92,8 @@
                       &mAttributeMap, MAX_UNIGRAM_COUNT_KEY, DEFAULT_MAX_UNIGRAM_COUNT)),
               mMaxBigramCount(HeaderReadWriteUtils::readIntAttributeValue(
                       &mAttributeMap, MAX_BIGRAM_COUNT_KEY, DEFAULT_MAX_BIGRAM_COUNT)),
+              mMaxTrigramCount(HeaderReadWriteUtils::readIntAttributeValue(
+                      &mAttributeMap, MAX_TRIGRAM_COUNT_KEY, DEFAULT_MAX_TRIGRAM_COUNT)),
               mCodePointTable(HeaderReadWriteUtils::readCodePointTable(&mAttributeMap)) {}
 
     // Copy header information
@@ -99,12 +106,14 @@
               mIsDecayingDict(headerPolicy->mIsDecayingDict),
               mDate(headerPolicy->mDate), mLastDecayedTime(headerPolicy->mLastDecayedTime),
               mUnigramCount(headerPolicy->mUnigramCount), mBigramCount(headerPolicy->mBigramCount),
+              mTrigramCount(headerPolicy->mTrigramCount),
               mExtendedRegionSize(headerPolicy->mExtendedRegionSize),
               mHasHistoricalInfoOfWords(headerPolicy->mHasHistoricalInfoOfWords),
               mForgettingCurveProbabilityValuesTableId(
                       headerPolicy->mForgettingCurveProbabilityValuesTableId),
               mMaxUnigramCount(headerPolicy->mMaxUnigramCount),
               mMaxBigramCount(headerPolicy->mMaxBigramCount),
+              mMaxTrigramCount(headerPolicy->mMaxTrigramCount),
               mCodePointTable(headerPolicy->mCodePointTable) {}
 
     // Temporary dummy header.
@@ -112,10 +121,10 @@
             : mDictFormatVersion(FormatUtils::UNKNOWN_VERSION), mDictionaryFlags(0), mSize(0),
               mAttributeMap(), mLocale(CharUtils::EMPTY_STRING), mMultiWordCostMultiplier(0.0f),
               mRequiresGermanUmlautProcessing(false), mIsDecayingDict(false),
-              mDate(0), mLastDecayedTime(0), mUnigramCount(0), mBigramCount(0),
+              mDate(0), mLastDecayedTime(0), mUnigramCount(0), mBigramCount(0), mTrigramCount(0),
               mExtendedRegionSize(0), mHasHistoricalInfoOfWords(false),
               mForgettingCurveProbabilityValuesTableId(0), mMaxUnigramCount(0), mMaxBigramCount(0),
-              mCodePointTable(nullptr) {}
+              mMaxTrigramCount(0), mCodePointTable(nullptr) {}
 
     ~HeaderPolicy() {}
 
@@ -183,6 +192,10 @@
         return mBigramCount;
     }
 
+    AK_FORCE_INLINE int getTrigramCount() const {
+        return mTrigramCount;
+    }
+
     AK_FORCE_INLINE int getExtendedRegionSize() const {
         return mExtendedRegionSize;
     }
@@ -212,15 +225,19 @@
         return mMaxBigramCount;
     }
 
+    AK_FORCE_INLINE int getMaxTrigramCount() const {
+        return mMaxTrigramCount;
+    }
+
     void readHeaderValueOrQuestionMark(const char *const key,
             int *outValue, int outValueSize) const;
 
     bool fillInAndWriteHeaderToBuffer(const bool updatesLastDecayedTime,
-            const int unigramCount, const int bigramCount,
-            const int extendedRegionSize, BufferWithExtendableBuffer *const outBuffer) const;
+            const EntryCounts &entryCounts, const int extendedRegionSize,
+            BufferWithExtendableBuffer *const outBuffer) const;
 
-    void fillInHeader(const bool updatesLastDecayedTime,
-            const int unigramCount, const int bigramCount, const int extendedRegionSize,
+    void fillInHeader(const bool updatesLastDecayedTime, const EntryCounts &entryCounts,
+            const int extendedRegionSize,
             DictionaryHeaderStructurePolicy::AttributeMap *outAttributeMap) const;
 
     AK_FORCE_INLINE const std::vector<int> *getLocale() const {
@@ -245,6 +262,7 @@
     static const char *const LAST_DECAYED_TIME_KEY;
     static const char *const UNIGRAM_COUNT_KEY;
     static const char *const BIGRAM_COUNT_KEY;
+    static const char *const TRIGRAM_COUNT_KEY;
     static const char *const EXTENDED_REGION_SIZE_KEY;
     static const char *const HAS_HISTORICAL_INFO_KEY;
     static const char *const LOCALE_KEY;
@@ -273,11 +291,13 @@
     const int mLastDecayedTime;
     const int mUnigramCount;
     const int mBigramCount;
+    const int mTrigramCount;
     const int mExtendedRegionSize;
     const bool mHasHistoricalInfoOfWords;
     const int mForgettingCurveProbabilityValuesTableId;
     const int mMaxUnigramCount;
     const int mMaxBigramCount;
+    const int mMaxTrigramCount;
     const int *const mCodePointTable;
 
     const std::vector<int> readLocale() const;
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_node_writer.cpp b/native/jni/src/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_node_writer.cpp
index 6243f14..d558b94 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_node_writer.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_node_writer.cpp
@@ -245,7 +245,7 @@
     if (!sourcePtNodeParams.hasBigrams()) {
         // Update has bigrams flag.
         return updatePtNodeFlags(sourcePtNodeParams.getHeadPos(),
-                sourcePtNodeParams.isBlacklisted(), sourcePtNodeParams.isNotAWord(),
+                sourcePtNodeParams.isPossiblyOffensive(), sourcePtNodeParams.isNotAWord(),
                 sourcePtNodeParams.isTerminal(), sourcePtNodeParams.hasShortcutTargets(),
                 true /* hasBigrams */,
                 sourcePtNodeParams.getCodePointCount() > 1 /* hasMultipleChars */);
@@ -316,7 +316,7 @@
     if (!ptNodeParams->hasShortcutTargets()) {
         // Update has shortcut targets flag.
         return updatePtNodeFlags(ptNodeParams->getHeadPos(),
-                ptNodeParams->isBlacklisted(), ptNodeParams->isNotAWord(),
+                ptNodeParams->isPossiblyOffensive(), ptNodeParams->isNotAWord(),
                 ptNodeParams->isTerminal(), true /* hasShortcutTargets */,
                 ptNodeParams->hasBigrams(),
                 ptNodeParams->getCodePointCount() > 1 /* hasMultipleChars */);
@@ -330,7 +330,7 @@
             ptNodeParams->getTerminalId()) != NOT_A_DICT_POS;
     const bool hasShortcutTargets = mBuffers->getShortcutDictContent()->getShortcutListHeadPos(
             ptNodeParams->getTerminalId()) != NOT_A_DICT_POS;
-    return updatePtNodeFlags(ptNodeParams->getHeadPos(), ptNodeParams->isBlacklisted(),
+    return updatePtNodeFlags(ptNodeParams->getHeadPos(), ptNodeParams->isPossiblyOffensive(),
             ptNodeParams->isNotAWord(), ptNodeParams->isTerminal(), hasShortcutTargets,
             hasBigrams, ptNodeParams->getCodePointCount() > 1 /* hasMultipleChars */);
 }
@@ -386,8 +386,9 @@
             ptNodeParams->getChildrenPos(), ptNodeWritingPos)) {
         return false;
     }
-    return updatePtNodeFlags(nodePos, ptNodeParams->isBlacklisted(), ptNodeParams->isNotAWord(),
-            isTerminal, ptNodeParams->hasShortcutTargets(), ptNodeParams->hasBigrams(),
+    return updatePtNodeFlags(nodePos, ptNodeParams->isPossiblyOffensive(),
+            ptNodeParams->isNotAWord(), isTerminal, ptNodeParams->hasShortcutTargets(),
+            ptNodeParams->hasBigrams(),
             ptNodeParams->getCodePointCount() > 1 /* hasMultipleChars */);
 }
 
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_policy.cpp b/native/jni/src/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_policy.cpp
index 0eae934..29f9ba3 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_policy.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_policy.cpp
@@ -303,7 +303,7 @@
     if (mUpdatingHelper.addUnigramWord(&readingHelper, codePointArrayView, unigramProperty,
             &addedNewUnigram)) {
         if (addedNewUnigram && !unigramProperty->representsBeginningOfSentence()) {
-            mUnigramCount++;
+            mEntryCounters.incrementUnigramCount();
         }
         if (unigramProperty->getShortcuts().size() > 0) {
             // Add shortcut target.
@@ -397,7 +397,7 @@
     if (mUpdatingHelper.addNgramEntry(PtNodePosArrayView::singleElementView(&prevWordPtNodePos),
             wordPos, ngramProperty, &addedNewBigram)) {
         if (addedNewBigram) {
-            mBigramCount++;
+            mEntryCounters.incrementBigramCount();
         }
         return true;
     } else {
@@ -438,7 +438,7 @@
     const int prevWordPtNodePos = getTerminalPtNodePosFromWordId(prevWordIds[0]);
     if (mUpdatingHelper.removeNgramEntry(
             PtNodePosArrayView::singleElementView(&prevWordPtNodePos), wordPos)) {
-        mBigramCount--;
+        mEntryCounters.decrementBigramCount();
         return true;
     } else {
         return false;
@@ -477,7 +477,7 @@
         AKLOGI("Warning: flush() is called for non-updatable dictionary. filePath: %s", filePath);
         return false;
     }
-    if (!mWritingHelper.writeToDictFile(filePath, mUnigramCount, mBigramCount)) {
+    if (!mWritingHelper.writeToDictFile(filePath, mEntryCounters.getEntryCounts())) {
         AKLOGE("Cannot flush the dictionary to file.");
         mIsCorrupted = true;
         return false;
@@ -515,7 +515,7 @@
         // Needs to reduce dictionary size.
         return true;
     } else if (mHeaderPolicy->isDecayingDict()) {
-        return ForgettingCurveUtils::needsToDecay(mindsBlockByGC, mUnigramCount, mBigramCount,
+        return ForgettingCurveUtils::needsToDecay(mindsBlockByGC, mEntryCounters.getEntryCounts(),
                 mHeaderPolicy);
     }
     return false;
@@ -525,19 +525,19 @@
         char *const outResult, const int maxResultLength) {
     const int compareLength = queryLength + 1 /* terminator */;
     if (strncmp(query, UNIGRAM_COUNT_QUERY, compareLength) == 0) {
-        snprintf(outResult, maxResultLength, "%d", mUnigramCount);
+        snprintf(outResult, maxResultLength, "%d", mEntryCounters.getUnigramCount());
     } else if (strncmp(query, BIGRAM_COUNT_QUERY, compareLength) == 0) {
-        snprintf(outResult, maxResultLength, "%d", mBigramCount);
+        snprintf(outResult, maxResultLength, "%d", mEntryCounters.getBigramCount());
     } else if (strncmp(query, MAX_UNIGRAM_COUNT_QUERY, compareLength) == 0) {
         snprintf(outResult, maxResultLength, "%d",
                 mHeaderPolicy->isDecayingDict() ?
-                        ForgettingCurveUtils::getUnigramCountHardLimit(
+                        ForgettingCurveUtils::getEntryCountHardLimit(
                                 mHeaderPolicy->getMaxUnigramCount()) :
                         static_cast<int>(Ver4DictConstants::MAX_DICTIONARY_SIZE));
     } else if (strncmp(query, MAX_BIGRAM_COUNT_QUERY, compareLength) == 0) {
         snprintf(outResult, maxResultLength, "%d",
                 mHeaderPolicy->isDecayingDict() ?
-                        ForgettingCurveUtils::getBigramCountHardLimit(
+                        ForgettingCurveUtils::getEntryCountHardLimit(
                                 mHeaderPolicy->getMaxBigramCount()) :
                         static_cast<int>(Ver4DictConstants::MAX_DICTIONARY_SIZE));
     }
@@ -608,8 +608,8 @@
         }
     }
     const UnigramProperty unigramProperty(ptNodeParams.representsBeginningOfSentence(),
-            ptNodeParams.isNotAWord(), ptNodeParams.isBlacklisted(), ptNodeParams.getProbability(),
-            *historicalInfo, std::move(shortcuts));
+            ptNodeParams.isNotAWord(), ptNodeParams.isPossiblyOffensive(),
+            ptNodeParams.getProbability(), *historicalInfo, std::move(shortcuts));
     return WordProperty(wordCodePoints.toVector(), &unigramProperty, &ngrams);
 }
 
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_policy.h b/native/jni/src/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_policy.h
index 1ad5e7e..2cda0d3 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_policy.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_policy.h
@@ -41,6 +41,7 @@
 #include "suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_writing_helper.h"
 #include "suggest/policyimpl/dictionary/structure/backward/v402/ver4_pt_node_array_reader.h"
 #include "suggest/policyimpl/dictionary/utils/buffer_with_extendable_buffer.h"
+#include "suggest/policyimpl/dictionary/utils/entry_counters.h"
 #include "utils/int_array_view.h"
 
 namespace latinime {
@@ -75,8 +76,8 @@
                       &mPtNodeArrayReader, &mBigramPolicy, &mShortcutPolicy),
               mUpdatingHelper(mDictBuffer, &mNodeReader, &mNodeWriter),
               mWritingHelper(mBuffers.get()),
-              mUnigramCount(mHeaderPolicy->getUnigramCount()),
-              mBigramCount(mHeaderPolicy->getBigramCount()),
+              mEntryCounters(mHeaderPolicy->getUnigramCount(), mHeaderPolicy->getBigramCount(),
+                      mHeaderPolicy->getTrigramCount()),
               mTerminalPtNodePositionsForIteratingWords(), mIsCorrupted(false) {};
 
     virtual int getRootPosition() const {
@@ -163,8 +164,7 @@
     Ver4PatriciaTrieNodeWriter mNodeWriter;
     DynamicPtUpdatingHelper mUpdatingHelper;
     Ver4PatriciaTrieWritingHelper mWritingHelper;
-    int mUnigramCount;
-    int mBigramCount;
+    MutableEntryCounters mEntryCounters;
     std::vector<int> mTerminalPtNodePositionsForIteratingWords;
     mutable bool mIsCorrupted;
 
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_writing_helper.cpp b/native/jni/src/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_writing_helper.cpp
index 2887dc6..5f44081 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_writing_helper.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_writing_helper.cpp
@@ -43,18 +43,18 @@
 namespace v402 {
 
 bool Ver4PatriciaTrieWritingHelper::writeToDictFile(const char *const dictDirPath,
-        const int unigramCount, const int bigramCount) const {
+        const EntryCounts &entryCounts) const {
     const HeaderPolicy *const headerPolicy = mBuffers->getHeaderPolicy();
     BufferWithExtendableBuffer headerBuffer(
             BufferWithExtendableBuffer::DEFAULT_MAX_ADDITIONAL_BUFFER_SIZE);
     const int extendedRegionSize = headerPolicy->getExtendedRegionSize()
             + mBuffers->getTrieBuffer()->getUsedAdditionalBufferSize();
     if (!headerPolicy->fillInAndWriteHeaderToBuffer(false /* updatesLastDecayedTime */,
-            unigramCount, bigramCount, extendedRegionSize, &headerBuffer)) {
+            entryCounts, extendedRegionSize, &headerBuffer)) {
         AKLOGE("Cannot write header structure to buffer. "
                 "updatesLastDecayedTime: %d, unigramCount: %d, bigramCount: %d, "
-                "extendedRegionSize: %d", false, unigramCount, bigramCount,
-                extendedRegionSize);
+                "extendedRegionSize: %d", false, entryCounters.getUnigramCount(),
+                entryCounters.getBigramCount(), extendedRegionSize);
         return false;
     }
     return mBuffers->flushHeaderAndDictBuffers(dictDirPath, &headerBuffer);
@@ -74,7 +74,8 @@
     BufferWithExtendableBuffer headerBuffer(
             BufferWithExtendableBuffer::DEFAULT_MAX_ADDITIONAL_BUFFER_SIZE);
     if (!headerPolicy->fillInAndWriteHeaderToBuffer(true /* updatesLastDecayedTime */,
-            unigramCount, bigramCount, 0 /* extendedRegionSize */, &headerBuffer)) {
+            EntryCounts(unigramCount, bigramCount, 0 /* trigramCount */),
+            0 /* extendedRegionSize */, &headerBuffer)) {
         return false;
     }
     return dictBuffers->flushHeaderAndDictBuffers(dictDirPath, &headerBuffer);
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_writing_helper.h b/native/jni/src/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_writing_helper.h
index 9034ee6..1aad33e 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_writing_helper.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/backward/v402/ver4_patricia_trie_writing_helper.h
@@ -27,6 +27,7 @@
 #include "defines.h"
 #include "suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_gc_event_listeners.h"
 #include "suggest/policyimpl/dictionary/structure/backward/v402/content/terminal_position_lookup_table.h"
+#include "suggest/policyimpl/dictionary/utils/entry_counters.h"
 
 namespace latinime {
 namespace backward {
@@ -46,8 +47,7 @@
     Ver4PatriciaTrieWritingHelper(Ver4DictBuffers *const buffers)
             : mBuffers(buffers) {}
 
-    bool writeToDictFile(const char *const dictDirPath, const int unigramCount,
-            const int bigramCount) const;
+    bool writeToDictFile(const char *const dictDirPath, const EntryCounts &entryCounts) const;
 
     // This method cannot be const because the original dictionary buffer will be updated to detect
     // useless PtNodes during GC.
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_updating_helper.cpp b/native/jni/src/suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_updating_helper.cpp
index 92fd6f2..e524e86 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_updating_helper.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_updating_helper.cpp
@@ -146,7 +146,7 @@
         const int movedPos = mBuffer->getTailPosition();
         int writingPos = movedPos;
         const PtNodeParams ptNodeParamsToWrite(getUpdatedPtNodeParams(originalPtNodeParams,
-                unigramProperty->isNotAWord(), unigramProperty->isBlacklisted(),
+                unigramProperty->isNotAWord(), unigramProperty->isPossiblyOffensive(),
                 true /* isTerminal */, originalPtNodeParams->getParentPos(),
                 originalPtNodeParams->getCodePointArrayView(), unigramProperty->getProbability()));
         if (!mPtNodeWriter->writeNewTerminalPtNodeAndAdvancePosition(&ptNodeParamsToWrite,
@@ -180,8 +180,9 @@
         return false;
     }
     const PtNodeParams ptNodeParamsToWrite(getPtNodeParamsForNewPtNode(
-            unigramProperty->isNotAWord(), unigramProperty->isBlacklisted(), true /* isTerminal */,
-            parentPtNodePos, ptNodeCodePoints, unigramProperty->getProbability()));
+            unigramProperty->isNotAWord(), unigramProperty->isPossiblyOffensive(),
+            true /* isTerminal */, parentPtNodePos, ptNodeCodePoints,
+            unigramProperty->getProbability()));
     if (!mPtNodeWriter->writeNewTerminalPtNodeAndAdvancePosition(&ptNodeParamsToWrite,
             unigramProperty, &writingPos)) {
         return false;
@@ -214,7 +215,7 @@
             reallocatingPtNodeParams->getCodePointArrayView().limit(overlappingCodePointCount);
     if (addsExtraChild) {
         const PtNodeParams ptNodeParamsToWrite(getPtNodeParamsForNewPtNode(
-                false /* isNotAWord */, false /* isBlacklisted */, false /* isTerminal */,
+                false /* isNotAWord */, false /* isPossiblyOffensive */, false /* isTerminal */,
                 reallocatingPtNodeParams->getParentPos(), firstPtNodeCodePoints,
                 NOT_A_PROBABILITY));
         if (!mPtNodeWriter->writePtNodeAndAdvancePosition(&ptNodeParamsToWrite, &writingPos)) {
@@ -222,7 +223,7 @@
         }
     } else {
         const PtNodeParams ptNodeParamsToWrite(getPtNodeParamsForNewPtNode(
-                unigramProperty->isNotAWord(), unigramProperty->isBlacklisted(),
+                unigramProperty->isNotAWord(), unigramProperty->isPossiblyOffensive(),
                 true /* isTerminal */, reallocatingPtNodeParams->getParentPos(),
                 firstPtNodeCodePoints, unigramProperty->getProbability()));
         if (!mPtNodeWriter->writeNewTerminalPtNodeAndAdvancePosition(&ptNodeParamsToWrite,
@@ -240,7 +241,7 @@
     // Write the 2nd part of the reallocating node.
     const int secondPartOfReallocatedPtNodePos = writingPos;
     const PtNodeParams childPartPtNodeParams(getUpdatedPtNodeParams(reallocatingPtNodeParams,
-            reallocatingPtNodeParams->isNotAWord(), reallocatingPtNodeParams->isBlacklisted(),
+            reallocatingPtNodeParams->isNotAWord(), reallocatingPtNodeParams->isPossiblyOffensive(),
             reallocatingPtNodeParams->isTerminal(), firstPartOfReallocatedPtNodePos,
             reallocatingPtNodeParams->getCodePointArrayView().skip(overlappingCodePointCount),
             reallocatingPtNodeParams->getProbability()));
@@ -249,7 +250,7 @@
     }
     if (addsExtraChild) {
         const PtNodeParams extraChildPtNodeParams(getPtNodeParamsForNewPtNode(
-                unigramProperty->isNotAWord(), unigramProperty->isBlacklisted(),
+                unigramProperty->isNotAWord(), unigramProperty->isPossiblyOffensive(),
                 true /* isTerminal */, firstPartOfReallocatedPtNodePos,
                 newPtNodeCodePoints.skip(overlappingCodePointCount),
                 unigramProperty->getProbability()));
@@ -276,20 +277,20 @@
 
 const PtNodeParams DynamicPtUpdatingHelper::getUpdatedPtNodeParams(
         const PtNodeParams *const originalPtNodeParams, const bool isNotAWord,
-        const bool isBlacklisted, const bool isTerminal, const int parentPos,
+        const bool isPossiblyOffensive, const bool isTerminal, const int parentPos,
         const CodePointArrayView codePoints, const int probability) const {
     const PatriciaTrieReadingUtils::NodeFlags flags = PatriciaTrieReadingUtils::createAndGetFlags(
-            isBlacklisted, isNotAWord, isTerminal, false /* hasShortcutTargets */,
+            isPossiblyOffensive, isNotAWord, isTerminal, false /* hasShortcutTargets */,
             false /* hasBigrams */, codePoints.size() > 1u /* hasMultipleChars */,
             CHILDREN_POSITION_FIELD_SIZE);
     return PtNodeParams(originalPtNodeParams, flags, parentPos, codePoints, probability);
 }
 
 const PtNodeParams DynamicPtUpdatingHelper::getPtNodeParamsForNewPtNode(const bool isNotAWord,
-        const bool isBlacklisted, const bool isTerminal, const int parentPos,
+        const bool isPossiblyOffensive, const bool isTerminal, const int parentPos,
         const CodePointArrayView codePoints, const int probability) const {
     const PatriciaTrieReadingUtils::NodeFlags flags = PatriciaTrieReadingUtils::createAndGetFlags(
-            isBlacklisted, isNotAWord, isTerminal, false /* hasShortcutTargets */,
+            isPossiblyOffensive, isNotAWord, isTerminal, false /* hasShortcutTargets */,
             false /* hasBigrams */, codePoints.size() > 1u /* hasMultipleChars */,
             CHILDREN_POSITION_FIELD_SIZE);
     return PtNodeParams(flags, parentPos, codePoints, probability);
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_updating_helper.h b/native/jni/src/suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_updating_helper.h
index 2bbe2f4..db5f6ab 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_updating_helper.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_updating_helper.h
@@ -85,12 +85,12 @@
             const CodePointArrayView newPtNodeCodePoints);
 
     const PtNodeParams getUpdatedPtNodeParams(const PtNodeParams *const originalPtNodeParams,
-            const bool isNotAWord, const bool isBlacklisted, const bool isTerminal,
+            const bool isNotAWord, const bool isPossiblyOffensive, const bool isTerminal,
             const int parentPos, const CodePointArrayView codePoints, const int probability) const;
 
-    const PtNodeParams getPtNodeParamsForNewPtNode(const bool isNotAWord, const bool isBlacklisted,
-            const bool isTerminal, const int parentPos, const CodePointArrayView codePoints,
-            const int probability) const;
+    const PtNodeParams getPtNodeParamsForNewPtNode(const bool isNotAWord,
+            const bool isPossiblyOffensive, const bool isTerminal, const int parentPos,
+            const CodePointArrayView codePoints, const int probability) const;
 };
 } // namespace latinime
 #endif /* LATINIME_DYNAMIC_PATRICIA_TRIE_UPDATING_HELPER_H */
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/pt_common/patricia_trie_reading_utils.cpp b/native/jni/src/suggest/policyimpl/dictionary/structure/pt_common/patricia_trie_reading_utils.cpp
index 6a498b2..b8d78bf 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/pt_common/patricia_trie_reading_utils.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/pt_common/patricia_trie_reading_utils.cpp
@@ -41,8 +41,8 @@
 const PtReadingUtils::NodeFlags PtReadingUtils::FLAG_HAS_BIGRAMS = 0x04;
 // Flag for non-words (typically, shortcut only entries)
 const PtReadingUtils::NodeFlags PtReadingUtils::FLAG_IS_NOT_A_WORD = 0x02;
-// Flag for blacklist
-const PtReadingUtils::NodeFlags PtReadingUtils::FLAG_IS_BLACKLISTED = 0x01;
+// Flag for possibly offensive words
+const PtReadingUtils::NodeFlags PtReadingUtils::FLAG_IS_POSSIBLY_OFFENSIVE = 0x01;
 
 /* static */ int PtReadingUtils::getPtNodeArraySizeAndAdvancePosition(
         const uint8_t *const buffer, int *const pos) {
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/pt_common/patricia_trie_reading_utils.h b/native/jni/src/suggest/policyimpl/dictionary/structure/pt_common/patricia_trie_reading_utils.h
index a69ec44..6a2bf5d 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/pt_common/patricia_trie_reading_utils.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/pt_common/patricia_trie_reading_utils.h
@@ -54,8 +54,8 @@
     /**
      * Node Flags
      */
-    static AK_FORCE_INLINE bool isBlacklisted(const NodeFlags flags) {
-        return (flags & FLAG_IS_BLACKLISTED) != 0;
+    static AK_FORCE_INLINE bool isPossiblyOffensive(const NodeFlags flags) {
+        return (flags & FLAG_IS_POSSIBLY_OFFENSIVE) != 0;
     }
 
     static AK_FORCE_INLINE bool isNotAWord(const NodeFlags flags) {
@@ -82,12 +82,12 @@
         return FLAG_CHILDREN_POSITION_TYPE_NOPOSITION != (MASK_CHILDREN_POSITION_TYPE & flags);
     }
 
-    static AK_FORCE_INLINE NodeFlags createAndGetFlags(const bool isBlacklisted,
+    static AK_FORCE_INLINE NodeFlags createAndGetFlags(const bool isPossiblyOffensive,
             const bool isNotAWord, const bool isTerminal, const bool hasShortcutTargets,
             const bool hasBigrams, const bool hasMultipleChars,
             const int childrenPositionFieldSize) {
         NodeFlags nodeFlags = 0;
-        nodeFlags = isBlacklisted ? (nodeFlags | FLAG_IS_BLACKLISTED) : nodeFlags;
+        nodeFlags = isPossiblyOffensive ? (nodeFlags | FLAG_IS_POSSIBLY_OFFENSIVE) : nodeFlags;
         nodeFlags = isNotAWord ? (nodeFlags | FLAG_IS_NOT_A_WORD) : nodeFlags;
         nodeFlags = isTerminal ? (nodeFlags | FLAG_IS_TERMINAL) : nodeFlags;
         nodeFlags = hasShortcutTargets ? (nodeFlags | FLAG_HAS_SHORTCUT_TARGETS) : nodeFlags;
@@ -127,7 +127,7 @@
     static const NodeFlags FLAG_HAS_SHORTCUT_TARGETS;
     static const NodeFlags FLAG_HAS_BIGRAMS;
     static const NodeFlags FLAG_IS_NOT_A_WORD;
-    static const NodeFlags FLAG_IS_BLACKLISTED;
+    static const NodeFlags FLAG_IS_POSSIBLY_OFFENSIVE;
 };
 } // namespace latinime
 #endif /* LATINIME_PATRICIA_TRIE_NODE_READING_UTILS_H */
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/pt_common/pt_node_params.h b/native/jni/src/suggest/policyimpl/dictionary/structure/pt_common/pt_node_params.h
index 3ff1829..585e87a 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/pt_common/pt_node_params.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/pt_common/pt_node_params.h
@@ -145,7 +145,18 @@
     }
 
     AK_FORCE_INLINE bool isBlacklisted() const {
-        return PatriciaTrieReadingUtils::isBlacklisted(mFlags);
+        // Note: this method will be removed in the next change.
+        // It is used in getProbabilityOfWord and getWordAttributes for both v402 and v403.
+        // * getProbabilityOfWord will be changed to no longer return NOT_A_PROBABILITY
+        //   when isBlacklisted (i.e. to only check if isNotAWord or isDeleted)
+        // * getWordAttributes will be changed to always return blacklisted=false and
+        //   isPossiblyOffensive according to the function below (instead of the current
+        //   behaviour of checking if the probability is zero)
+        return PatriciaTrieReadingUtils::isPossiblyOffensive(mFlags);
+    }
+
+    AK_FORCE_INLINE bool isPossiblyOffensive() const {
+        return PatriciaTrieReadingUtils::isPossiblyOffensive(mFlags);
     }
 
     AK_FORCE_INLINE bool isNotAWord() const {
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_policy.cpp b/native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_policy.cpp
index b7f1199..ca44da9 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_policy.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_policy.cpp
@@ -476,8 +476,8 @@
         }
     }
     const UnigramProperty unigramProperty(ptNodeParams.representsBeginningOfSentence(),
-            ptNodeParams.isNotAWord(), ptNodeParams.isBlacklisted(), ptNodeParams.getProbability(),
-            HistoricalInfo(), std::move(shortcuts));
+            ptNodeParams.isNotAWord(), ptNodeParams.isPossiblyOffensive(),
+            ptNodeParams.getProbability(), HistoricalInfo(), std::move(shortcuts));
     return WordProperty(wordCodePoints.toVector(), &unigramProperty, &ngrams);
 }
 
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/v4/content/language_model_dict_content.cpp b/native/jni/src/suggest/policyimpl/dictionary/structure/v4/content/language_model_dict_content.cpp
index c4297f5..a889965 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/v4/content/language_model_dict_content.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/v4/content/language_model_dict_content.cpp
@@ -23,8 +23,6 @@
 
 namespace latinime {
 
-const int LanguageModelDictContent::UNIGRAM_COUNT_INDEX_IN_ENTRY_COUNT_TABLE = 0;
-const int LanguageModelDictContent::BIGRAM_COUNT_INDEX_IN_ENTRY_COUNT_TABLE = 1;
 const int LanguageModelDictContent::DUMMY_PROBABILITY_FOR_VALID_WORDS = 1;
 
 bool LanguageModelDictContent::save(FILE *const file) const {
@@ -33,10 +31,9 @@
 
 bool LanguageModelDictContent::runGC(
         const TerminalPositionLookupTable::TerminalIdMap *const terminalIdMap,
-        const LanguageModelDictContent *const originalContent,
-        int *const outNgramCount) {
+        const LanguageModelDictContent *const originalContent) {
     return runGCInner(terminalIdMap, originalContent->mTrieMap.getEntriesInRootLevel(),
-            0 /* nextLevelBitmapEntryIndex */, outNgramCount);
+            0 /* nextLevelBitmapEntryIndex */);
 }
 
 const WordAttributes LanguageModelDictContent::getWordAttributes(const WordIdArrayView prevWordIds,
@@ -143,28 +140,30 @@
     return EntryRange(mTrieMap.getEntriesInSpecifiedLevel(bitmapEntryIndex), mHasHistoricalInfo);
 }
 
-bool LanguageModelDictContent::truncateEntries(const int *const entryCounts,
-        const int *const maxEntryCounts, const HeaderPolicy *const headerPolicy,
-        int *const outEntryCounts) {
-    for (int i = 0; i <= MAX_PREV_WORD_COUNT_FOR_N_GRAM; ++i) {
-        if (entryCounts[i] <= maxEntryCounts[i]) {
-            outEntryCounts[i] = entryCounts[i];
+bool LanguageModelDictContent::truncateEntries(const EntryCounts &currentEntryCounts,
+        const EntryCounts &maxEntryCounts, const HeaderPolicy *const headerPolicy,
+        MutableEntryCounters *const outEntryCounters) {
+    for (int prevWordCount = 0; prevWordCount <= MAX_PREV_WORD_COUNT_FOR_N_GRAM; ++prevWordCount) {
+        const int totalWordCount = prevWordCount + 1;
+        if (currentEntryCounts.getNgramCount(totalWordCount)
+                <= maxEntryCounts.getNgramCount(totalWordCount)) {
+            outEntryCounters->setNgramCount(totalWordCount,
+                    currentEntryCounts.getNgramCount(totalWordCount));
             continue;
         }
-        if (!turncateEntriesInSpecifiedLevel(headerPolicy, maxEntryCounts[i], i,
-                &outEntryCounts[i])) {
+        int entryCount = 0;
+        if (!turncateEntriesInSpecifiedLevel(headerPolicy,
+                maxEntryCounts.getNgramCount(totalWordCount), prevWordCount, &entryCount)) {
             return false;
         }
+        outEntryCounters->setNgramCount(totalWordCount, entryCount);
     }
     return true;
 }
 
 bool LanguageModelDictContent::updateAllEntriesOnInputWord(const WordIdArrayView prevWordIds,
         const int wordId, const bool isValid, const HistoricalInfo historicalInfo,
-        const HeaderPolicy *const headerPolicy, int *const outAddedNewNgramEntryCount) {
-    if (outAddedNewNgramEntryCount) {
-        *outAddedNewNgramEntryCount = 0;
-    }
+        const HeaderPolicy *const headerPolicy, MutableEntryCounters *const entryCountersToUpdate) {
     if (!mHasHistoricalInfo) {
         AKLOGE("updateAllEntriesOnInputWord is called for dictionary without historical info.");
         return false;
@@ -188,8 +187,8 @@
         if (!setNgramProbabilityEntry(limitedPrevWordIds, wordId, &updatedNgramProbabilityEntry)) {
             return false;
         }
-        if (!originalNgramProbabilityEntry.isValid() && outAddedNewNgramEntryCount) {
-            *outAddedNewNgramEntryCount += 1;
+        if (!originalNgramProbabilityEntry.isValid()) {
+            entryCountersToUpdate->incrementNgramCount(i + 2);
         }
     }
     return true;
@@ -211,8 +210,7 @@
 
 bool LanguageModelDictContent::runGCInner(
         const TerminalPositionLookupTable::TerminalIdMap *const terminalIdMap,
-        const TrieMap::TrieMapRange trieMapRange,
-        const int nextLevelBitmapEntryIndex, int *const outNgramCount) {
+        const TrieMap::TrieMapRange trieMapRange, const int nextLevelBitmapEntryIndex) {
     for (auto &entry : trieMapRange) {
         const auto it = terminalIdMap->find(entry.key());
         if (it == terminalIdMap->end() || it->second == Ver4DictConstants::NOT_A_TERMINAL_ID) {
@@ -222,13 +220,9 @@
         if (!mTrieMap.put(it->second, entry.value(), nextLevelBitmapEntryIndex)) {
             return false;
         }
-        if (outNgramCount) {
-            *outNgramCount += 1;
-        }
         if (entry.hasNextLevelMap()) {
             if (!runGCInner(terminalIdMap, entry.getEntriesInNextLevel(),
-                    mTrieMap.getNextLevelBitmapEntryIndex(it->second, nextLevelBitmapEntryIndex),
-                    outNgramCount)) {
+                    mTrieMap.getNextLevelBitmapEntryIndex(it->second, nextLevelBitmapEntryIndex))) {
                 return false;
             }
         }
@@ -271,7 +265,7 @@
 
 bool LanguageModelDictContent::updateAllProbabilityEntriesForGCInner(const int bitmapEntryIndex,
         const int prevWordCount, const HeaderPolicy *const headerPolicy,
-        int *const outEntryCounts) {
+        MutableEntryCounters *const outEntryCounters) {
     for (const auto &entry : mTrieMap.getEntriesInSpecifiedLevel(bitmapEntryIndex)) {
         if (prevWordCount > MAX_PREV_WORD_COUNT_FOR_N_GRAM) {
             AKLOGE("Invalid prevWordCount. prevWordCount: %d, MAX_PREV_WORD_COUNT_FOR_N_GRAM: %d.",
@@ -308,13 +302,13 @@
             }
         }
         if (!probabilityEntry.representsBeginningOfSentence()) {
-            outEntryCounts[prevWordCount] += 1;
+            outEntryCounters->incrementNgramCount(prevWordCount + 1);
         }
         if (!entry.hasNextLevelMap()) {
             continue;
         }
         if (!updateAllProbabilityEntriesForGCInner(entry.getNextLevelBitmapEntryIndex(),
-                prevWordCount + 1, headerPolicy, outEntryCounts)) {
+                prevWordCount + 1, headerPolicy, outEntryCounters)) {
             return false;
         }
     }
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/v4/content/language_model_dict_content.h b/native/jni/src/suggest/policyimpl/dictionary/structure/v4/content/language_model_dict_content.h
index 51ef090..41a429a 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/v4/content/language_model_dict_content.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/v4/content/language_model_dict_content.h
@@ -25,6 +25,7 @@
 #include "suggest/policyimpl/dictionary/structure/v4/content/probability_entry.h"
 #include "suggest/policyimpl/dictionary/structure/v4/content/terminal_position_lookup_table.h"
 #include "suggest/policyimpl/dictionary/structure/v4/ver4_dict_constants.h"
+#include "suggest/policyimpl/dictionary/utils/entry_counters.h"
 #include "suggest/policyimpl/dictionary/utils/trie_map.h"
 #include "utils/byte_array_view.h"
 #include "utils/int_array_view.h"
@@ -40,9 +41,6 @@
  */
 class LanguageModelDictContent {
  public:
-    static const int UNIGRAM_COUNT_INDEX_IN_ENTRY_COUNT_TABLE;
-    static const int BIGRAM_COUNT_INDEX_IN_ENTRY_COUNT_TABLE;
-
     // Pair of word id and probability entry used for iteration.
     class WordIdAndProbabilityEntry {
      public:
@@ -126,8 +124,7 @@
     bool save(FILE *const file) const;
 
     bool runGC(const TerminalPositionLookupTable::TerminalIdMap *const terminalIdMap,
-            const LanguageModelDictContent *const originalContent,
-            int *const outNgramCount);
+            const LanguageModelDictContent *const originalContent);
 
     const WordAttributes getWordAttributes(const WordIdArrayView prevWordIds, const int wordId,
             const HeaderPolicy *const headerPolicy) const;
@@ -155,21 +152,19 @@
     EntryRange getProbabilityEntries(const WordIdArrayView prevWordIds) const;
 
     bool updateAllProbabilityEntriesForGC(const HeaderPolicy *const headerPolicy,
-            int *const outEntryCounts) {
-        for (int i = 0; i <= MAX_PREV_WORD_COUNT_FOR_N_GRAM; ++i) {
-            outEntryCounts[i] = 0;
-        }
+            MutableEntryCounters *const outEntryCounters) {
         return updateAllProbabilityEntriesForGCInner(mTrieMap.getRootBitmapEntryIndex(),
-                0 /* prevWordCount */, headerPolicy, outEntryCounts);
+                0 /* prevWordCount */, headerPolicy, outEntryCounters);
     }
 
     // entryCounts should be created by updateAllProbabilityEntries.
-    bool truncateEntries(const int *const entryCounts, const int *const maxEntryCounts,
-            const HeaderPolicy *const headerPolicy, int *const outEntryCounts);
+    bool truncateEntries(const EntryCounts &currentEntryCounts, const EntryCounts &maxEntryCounts,
+            const HeaderPolicy *const headerPolicy, MutableEntryCounters *const outEntryCounters);
 
     bool updateAllEntriesOnInputWord(const WordIdArrayView prevWordIds, const int wordId,
             const bool isValid, const HistoricalInfo historicalInfo,
-            const HeaderPolicy *const headerPolicy, int *const outAddedNewNgramEntryCount);
+            const HeaderPolicy *const headerPolicy,
+            MutableEntryCounters *const entryCountersToUpdate);
 
  private:
     DISALLOW_COPY_AND_ASSIGN(LanguageModelDictContent);
@@ -204,12 +199,11 @@
     const bool mHasHistoricalInfo;
 
     bool runGCInner(const TerminalPositionLookupTable::TerminalIdMap *const terminalIdMap,
-            const TrieMap::TrieMapRange trieMapRange, const int nextLevelBitmapEntryIndex,
-            int *const outNgramCount);
+            const TrieMap::TrieMapRange trieMapRange, const int nextLevelBitmapEntryIndex);
     int createAndGetBitmapEntryIndex(const WordIdArrayView prevWordIds);
     int getBitmapEntryIndex(const WordIdArrayView prevWordIds) const;
     bool updateAllProbabilityEntriesForGCInner(const int bitmapEntryIndex, const int prevWordCount,
-            const HeaderPolicy *const headerPolicy, int *const outEntryCounts);
+            const HeaderPolicy *const headerPolicy, MutableEntryCounters *const outEntryCounters);
     bool turncateEntriesInSpecifiedLevel(const HeaderPolicy *const headerPolicy,
             const int maxEntryCount, const int targetLevel, int *const outEntryCount);
     bool getEntryInfo(const HeaderPolicy *const headerPolicy, const int targetLevel,
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_node_writer.cpp b/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_node_writer.cpp
index 794c63f..3488f7d 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_node_writer.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_node_writer.cpp
@@ -342,7 +342,7 @@
     // Create node flags and write them.
     PatriciaTrieReadingUtils::NodeFlags nodeFlags =
             PatriciaTrieReadingUtils::createAndGetFlags(false /* isNotAWord */,
-                    false /* isBlacklisted */, isTerminal, false /* hasShortcutTargets */,
+                    false /* isPossiblyOffensive */, isTerminal, false /* hasShortcutTargets */,
                     false /* hasBigrams */, hasMultipleChars, CHILDREN_POSITION_FIELD_SIZE);
     if (!DynamicPtWritingUtils::writeFlags(mTrieBuffer, nodeFlags, ptNodePos)) {
         AKLOGE("Cannot write PtNode flags. flags: %x, pos: %d", nodeFlags, ptNodePos);
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_policy.cpp b/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_policy.cpp
index ea8c0dc..d90066c 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_policy.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_policy.cpp
@@ -211,7 +211,7 @@
     if (mUpdatingHelper.addUnigramWord(&readingHelper, codePointArrayView, unigramProperty,
             &addedNewUnigram)) {
         if (addedNewUnigram && !unigramProperty->representsBeginningOfSentence()) {
-            mUnigramCount++;
+            mEntryCounters.incrementUnigramCount();
         }
         if (unigramProperty->getShortcuts().size() > 0) {
             // Add shortcut target.
@@ -259,7 +259,7 @@
         return false;
     }
     if (!ptNodeParams.representsNonWordInfo()) {
-        mUnigramCount--;
+        mEntryCounters.decrementUnigramCount();
     }
     return true;
 }
@@ -299,7 +299,8 @@
         }
         const UnigramProperty beginningOfSentenceUnigramProperty(
                 true /* representsBeginningOfSentence */, true /* isNotAWord */,
-                false /* isBlacklisted */, MAX_PROBABILITY /* probability */, HistoricalInfo());
+                false /* isBlacklisted */, false /* isPossiblyOffensive */,
+                MAX_PROBABILITY /* probability */, HistoricalInfo());
         if (!addUnigramEntry(ngramContext->getNthPrevWordCodePoints(1 /* n */),
                 &beginningOfSentenceUnigramProperty)) {
             AKLOGE("Cannot add unigram entry for the beginning-of-sentence.");
@@ -316,7 +317,7 @@
     bool addedNewEntry = false;
     if (mNodeWriter.addNgramEntry(prevWordIds, wordId, ngramProperty, &addedNewEntry)) {
         if (addedNewEntry) {
-            mBigramCount++;
+            mEntryCounters.incrementNgramCount(prevWordIds.size() + 1);
         }
         return true;
     } else {
@@ -354,7 +355,7 @@
         return false;
     }
     if (mNodeWriter.removeNgramEntry(prevWordIds, wordId)) {
-        mBigramCount--;
+        mEntryCounters.decrementNgramCount(prevWordIds.size());
         return true;
     } else {
         return false;
@@ -375,8 +376,9 @@
     if (wordId == NOT_A_WORD_ID) {
         // The word is not in the dictionary.
         const UnigramProperty unigramProperty(false /* representsBeginningOfSentence */,
-                false /* isNotAWord */, false /* isBlacklisted */, NOT_A_PROBABILITY,
-                HistoricalInfo(historicalInfo.getTimestamp(), 0 /* level */, 0 /* count */));
+                false /* isNotAWord */, false /* isBlacklisted */, false /* isPossiblyOffensive */,
+                NOT_A_PROBABILITY, HistoricalInfo(historicalInfo.getTimestamp(), 0 /* level */,
+                0 /* count */));
         if (!addUnigramEntry(wordCodePoints, &unigramProperty)) {
             AKLOGE("Cannot add unigarm entry in updateEntriesForWordWithNgramContext().");
             return false;
@@ -391,7 +393,7 @@
             && ngramContext->isNthPrevWordBeginningOfSentence(1 /* n */)) {
         const UnigramProperty beginningOfSentenceUnigramProperty(
                 true /* representsBeginningOfSentence */,
-                true /* isNotAWord */, false /* isBlacklisted */, NOT_A_PROBABILITY,
+                true /* isNotAWord */, false /* isPossiblyOffensive */, NOT_A_PROBABILITY,
                 HistoricalInfo(historicalInfo.getTimestamp(), 0 /* level */, 0 /* count */));
         if (!addUnigramEntry(ngramContext->getNthPrevWordCodePoints(1 /* n */),
                 &beginningOfSentenceUnigramProperty)) {
@@ -401,12 +403,10 @@
         // Refresh word ids.
         ngramContext->getPrevWordIds(this, &prevWordIdArray, false /* tryLowerCaseSearch */);
     }
-    int addedNewNgramEntryCount = 0;
     if (!mBuffers->getMutableLanguageModelDictContent()->updateAllEntriesOnInputWord(prevWordIds,
-            wordId, updateAsAValidWord, historicalInfo, mHeaderPolicy, &addedNewNgramEntryCount)) {
+            wordId, updateAsAValidWord, historicalInfo, mHeaderPolicy, &mEntryCounters)) {
         return false;
     }
-    mBigramCount += addedNewNgramEntryCount;
     return true;
 }
 
@@ -415,7 +415,7 @@
         AKLOGI("Warning: flush() is called for non-updatable dictionary. filePath: %s", filePath);
         return false;
     }
-    if (!mWritingHelper.writeToDictFile(filePath, mUnigramCount, mBigramCount)) {
+    if (!mWritingHelper.writeToDictFile(filePath, mEntryCounters.getEntryCounts())) {
         AKLOGE("Cannot flush the dictionary to file.");
         mIsCorrupted = true;
         return false;
@@ -453,8 +453,7 @@
         // Needs to reduce dictionary size.
         return true;
     } else if (mHeaderPolicy->isDecayingDict()) {
-        return ForgettingCurveUtils::needsToDecay(mindsBlockByGC, mUnigramCount, mBigramCount,
-                mHeaderPolicy);
+        return ForgettingCurveUtils::needsToDecay(mindsBlockByGC, mEntryCounters.getEntryCounts(), mHeaderPolicy);
     }
     return false;
 }
@@ -463,19 +462,19 @@
         char *const outResult, const int maxResultLength) {
     const int compareLength = queryLength + 1 /* terminator */;
     if (strncmp(query, UNIGRAM_COUNT_QUERY, compareLength) == 0) {
-        snprintf(outResult, maxResultLength, "%d", mUnigramCount);
+        snprintf(outResult, maxResultLength, "%d", mEntryCounters.getUnigramCount());
     } else if (strncmp(query, BIGRAM_COUNT_QUERY, compareLength) == 0) {
-        snprintf(outResult, maxResultLength, "%d", mBigramCount);
+        snprintf(outResult, maxResultLength, "%d", mEntryCounters.getBigramCount());
     } else if (strncmp(query, MAX_UNIGRAM_COUNT_QUERY, compareLength) == 0) {
         snprintf(outResult, maxResultLength, "%d",
                 mHeaderPolicy->isDecayingDict() ?
-                        ForgettingCurveUtils::getUnigramCountHardLimit(
+                        ForgettingCurveUtils::getEntryCountHardLimit(
                                 mHeaderPolicy->getMaxUnigramCount()) :
                         static_cast<int>(Ver4DictConstants::MAX_DICTIONARY_SIZE));
     } else if (strncmp(query, MAX_BIGRAM_COUNT_QUERY, compareLength) == 0) {
         snprintf(outResult, maxResultLength, "%d",
                 mHeaderPolicy->isDecayingDict() ?
-                        ForgettingCurveUtils::getBigramCountHardLimit(
+                        ForgettingCurveUtils::getEntryCountHardLimit(
                                 mHeaderPolicy->getMaxBigramCount()) :
                         static_cast<int>(Ver4DictConstants::MAX_DICTIONARY_SIZE));
     }
@@ -532,7 +531,8 @@
     }
     const UnigramProperty unigramProperty(probabilityEntry.representsBeginningOfSentence(),
             probabilityEntry.isNotAWord(), probabilityEntry.isBlacklisted(),
-            probabilityEntry.getProbability(), *historicalInfo, std::move(shortcuts));
+            probabilityEntry.isPossiblyOffensive(), probabilityEntry.getProbability(),
+            *historicalInfo, std::move(shortcuts));
     return WordProperty(wordCodePoints.toVector(), &unigramProperty, &ngrams);
 }
 
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_policy.h b/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_policy.h
index c053281..e3611cb 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_policy.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_policy.h
@@ -30,6 +30,7 @@
 #include "suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_writing_helper.h"
 #include "suggest/policyimpl/dictionary/structure/v4/ver4_pt_node_array_reader.h"
 #include "suggest/policyimpl/dictionary/utils/buffer_with_extendable_buffer.h"
+#include "suggest/policyimpl/dictionary/utils/entry_counters.h"
 #include "utils/int_array_view.h"
 
 namespace latinime {
@@ -37,7 +38,6 @@
 class DicNode;
 class DicNodeVector;
 
-// TODO: Support counting ngram entries.
 // Word id = Artificial id that is stored in the PtNode looked up by the word.
 class Ver4PatriciaTriePolicy : public DictionaryStructureWithBufferPolicy {
  public:
@@ -51,8 +51,8 @@
                       &mShortcutPolicy),
               mUpdatingHelper(mDictBuffer, &mNodeReader, &mNodeWriter),
               mWritingHelper(mBuffers.get()),
-              mUnigramCount(mHeaderPolicy->getUnigramCount()),
-              mBigramCount(mHeaderPolicy->getBigramCount()),
+              mEntryCounters(mHeaderPolicy->getUnigramCount(), mHeaderPolicy->getBigramCount(),
+                      mHeaderPolicy->getTrigramCount()),
               mTerminalPtNodePositionsForIteratingWords(), mIsCorrupted(false) {};
 
     AK_FORCE_INLINE int getRootPosition() const {
@@ -141,9 +141,7 @@
     Ver4PatriciaTrieNodeWriter mNodeWriter;
     DynamicPtUpdatingHelper mUpdatingHelper;
     Ver4PatriciaTrieWritingHelper mWritingHelper;
-    int mUnigramCount;
-    // TODO: Support counting ngram entries.
-    int mBigramCount;
+    MutableEntryCounters mEntryCounters;
     std::vector<int> mTerminalPtNodePositionsForIteratingWords;
     mutable bool mIsCorrupted;
 
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_writing_helper.cpp b/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_writing_helper.cpp
index f0d59c1..c7ffcc8 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_writing_helper.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_writing_helper.cpp
@@ -33,17 +33,18 @@
 namespace latinime {
 
 bool Ver4PatriciaTrieWritingHelper::writeToDictFile(const char *const dictDirPath,
-        const int unigramCount, const int bigramCount) const {
+        const EntryCounts &entryCounts) const {
     const HeaderPolicy *const headerPolicy = mBuffers->getHeaderPolicy();
     BufferWithExtendableBuffer headerBuffer(
             BufferWithExtendableBuffer::DEFAULT_MAX_ADDITIONAL_BUFFER_SIZE);
     const int extendedRegionSize = headerPolicy->getExtendedRegionSize()
             + mBuffers->getTrieBuffer()->getUsedAdditionalBufferSize();
     if (!headerPolicy->fillInAndWriteHeaderToBuffer(false /* updatesLastDecayedTime */,
-            unigramCount, bigramCount, extendedRegionSize, &headerBuffer)) {
+            entryCounts, extendedRegionSize, &headerBuffer)) {
         AKLOGE("Cannot write header structure to buffer. "
-                "updatesLastDecayedTime: %d, unigramCount: %d, bigramCount: %d, "
-                "extendedRegionSize: %d", false, unigramCount, bigramCount,
+                "updatesLastDecayedTime: %d, unigramCount: %d, bigramCount: %d, trigramCount: %d,"
+                "extendedRegionSize: %d", false, entryCounters.getUnigramCount(),
+                entryCounters.getBigramCount(), entryCounters.getTrigramCount(),
                 extendedRegionSize);
         return false;
     }
@@ -56,15 +57,14 @@
     Ver4DictBuffers::Ver4DictBuffersPtr dictBuffers(
             Ver4DictBuffers::createVer4DictBuffers(headerPolicy,
                     Ver4DictConstants::MAX_DICTIONARY_SIZE));
-    int unigramCount = 0;
-    int bigramCount = 0;
-    if (!runGC(rootPtNodeArrayPos, headerPolicy, dictBuffers.get(), &unigramCount, &bigramCount)) {
+    MutableEntryCounters entryCounters;
+    if (!runGC(rootPtNodeArrayPos, headerPolicy, dictBuffers.get(), &entryCounters)) {
         return false;
     }
     BufferWithExtendableBuffer headerBuffer(
             BufferWithExtendableBuffer::DEFAULT_MAX_ADDITIONAL_BUFFER_SIZE);
     if (!headerPolicy->fillInAndWriteHeaderToBuffer(true /* updatesLastDecayedTime */,
-            unigramCount, bigramCount, 0 /* extendedRegionSize */, &headerBuffer)) {
+            entryCounters.getEntryCounts(), 0 /* extendedRegionSize */, &headerBuffer)) {
         return false;
     }
     return dictBuffers->flushHeaderAndDictBuffers(dictDirPath, &headerBuffer);
@@ -72,7 +72,7 @@
 
 bool Ver4PatriciaTrieWritingHelper::runGC(const int rootPtNodeArrayPos,
         const HeaderPolicy *const headerPolicy, Ver4DictBuffers *const buffersToWrite,
-        int *const outUnigramCount, int *const outBigramCount) {
+        MutableEntryCounters *const outEntryCounters) {
     Ver4PatriciaTrieNodeReader ptNodeReader(mBuffers->getTrieBuffer());
     Ver4PtNodeArrayReader ptNodeArrayReader(mBuffers->getTrieBuffer());
     Ver4ShortcutListPolicy shortcutPolicy(mBuffers->getMutableShortcutDictContent(),
@@ -80,24 +80,17 @@
     Ver4PatriciaTrieNodeWriter ptNodeWriter(mBuffers->getWritableTrieBuffer(),
             mBuffers, &ptNodeReader, &ptNodeArrayReader, &shortcutPolicy);
 
-    int entryCountTable[MAX_PREV_WORD_COUNT_FOR_N_GRAM + 1];
     if (!mBuffers->getMutableLanguageModelDictContent()->updateAllProbabilityEntriesForGC(
-            headerPolicy, entryCountTable)) {
+            headerPolicy, outEntryCounters)) {
         AKLOGE("Failed to update probabilities in language model dict content.");
         return false;
     }
     if (headerPolicy->isDecayingDict()) {
-        int maxEntryCountTable[MAX_PREV_WORD_COUNT_FOR_N_GRAM + 1];
-        maxEntryCountTable[LanguageModelDictContent::UNIGRAM_COUNT_INDEX_IN_ENTRY_COUNT_TABLE] =
-                headerPolicy->getMaxUnigramCount();
-        maxEntryCountTable[LanguageModelDictContent::BIGRAM_COUNT_INDEX_IN_ENTRY_COUNT_TABLE] =
-                headerPolicy->getMaxBigramCount();
-        for (size_t i = 2; i < NELEMS(maxEntryCountTable); ++i) {
-            // TODO: Have max n-gram count.
-            maxEntryCountTable[i] = headerPolicy->getMaxBigramCount();
-        }
-        if (!mBuffers->getMutableLanguageModelDictContent()->truncateEntries(entryCountTable,
-                maxEntryCountTable, headerPolicy, entryCountTable)) {
+        const EntryCounts maxEntryCounts(headerPolicy->getMaxUnigramCount(),
+                headerPolicy->getMaxBigramCount(), headerPolicy->getMaxTrigramCount());
+        if (!mBuffers->getMutableLanguageModelDictContent()->truncateEntries(
+                outEntryCounters->getEntryCounts(), maxEntryCounts, headerPolicy,
+                outEntryCounters)) {
             AKLOGE("Failed to truncate entries in language model dict content.");
             return false;
         }
@@ -141,9 +134,9 @@
             &terminalIdMap)) {
         return false;
     }
-    // Run GC for probability dict content.
+    // Run GC for language model dict content.
     if (!buffersToWrite->getMutableLanguageModelDictContent()->runGC(&terminalIdMap,
-            mBuffers->getLanguageModelDictContent(), nullptr /* outNgramCount */)) {
+            mBuffers->getLanguageModelDictContent())) {
         return false;
     }
     // Run GC for shortcut dict content.
@@ -166,10 +159,6 @@
             &traversePolicyToUpdateAllPtNodeFlagsAndTerminalIds)) {
         return false;
     }
-    *outUnigramCount =
-            entryCountTable[LanguageModelDictContent::UNIGRAM_COUNT_INDEX_IN_ENTRY_COUNT_TABLE];
-    *outBigramCount =
-            entryCountTable[LanguageModelDictContent::BIGRAM_COUNT_INDEX_IN_ENTRY_COUNT_TABLE];
     return true;
 }
 
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_writing_helper.h b/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_writing_helper.h
index 3569d05..c56cea5 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_writing_helper.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_writing_helper.h
@@ -20,6 +20,7 @@
 #include "defines.h"
 #include "suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_gc_event_listeners.h"
 #include "suggest/policyimpl/dictionary/structure/v4/content/terminal_position_lookup_table.h"
+#include "suggest/policyimpl/dictionary/utils/entry_counters.h"
 
 namespace latinime {
 
@@ -33,9 +34,7 @@
     Ver4PatriciaTrieWritingHelper(Ver4DictBuffers *const buffers)
             : mBuffers(buffers) {}
 
-    // TODO: Support counting ngram entries.
-    bool writeToDictFile(const char *const dictDirPath, const int unigramCount,
-            const int bigramCount) const;
+    bool writeToDictFile(const char *const dictDirPath, const EntryCounts &entryCounts) const;
 
     // This method cannot be const because the original dictionary buffer will be updated to detect
     // useless PtNodes during GC.
@@ -68,8 +67,7 @@
     };
 
     bool runGC(const int rootPtNodeArrayPos, const HeaderPolicy *const headerPolicy,
-            Ver4DictBuffers *const buffersToWrite, int *const outUnigramCount,
-            int *const outBigramCount);
+            Ver4DictBuffers *const buffersToWrite, MutableEntryCounters *const outEntryCounters);
 
     Ver4DictBuffers *const mBuffers;
 };
diff --git a/native/jni/src/suggest/policyimpl/dictionary/utils/dict_file_writing_utils.cpp b/native/jni/src/suggest/policyimpl/dictionary/utils/dict_file_writing_utils.cpp
index b7e2a72..9d8e866 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/utils/dict_file_writing_utils.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/utils/dict_file_writing_utils.cpp
@@ -27,6 +27,7 @@
 #include "suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_writing_utils.h"
 #include "suggest/policyimpl/dictionary/structure/v4/ver4_dict_buffers.h"
 #include "suggest/policyimpl/dictionary/utils/buffer_with_extendable_buffer.h"
+#include "suggest/policyimpl/dictionary/utils/entry_counters.h"
 #include "suggest/policyimpl/dictionary/utils/file_utils.h"
 #include "suggest/policyimpl/dictionary/utils/format_utils.h"
 #include "utils/time_keeper.h"
@@ -69,8 +70,7 @@
     DictBuffersPtr dictBuffers = DictBuffers::createVer4DictBuffers(&headerPolicy,
             DictConstants::MAX_DICT_EXTENDED_REGION_SIZE);
     headerPolicy.fillInAndWriteHeaderToBuffer(true /* updatesLastDecayedTime */,
-            0 /* unigramCount */, 0 /* bigramCount */,
-            0 /* extendedRegionSize */, dictBuffers->getWritableHeaderBuffer());
+            EntryCounts(), 0 /* extendedRegionSize */, dictBuffers->getWritableHeaderBuffer());
     if (!DynamicPtWritingUtils::writeEmptyDictionary(
             dictBuffers->getWritableTrieBuffer(), 0 /* rootPos */)) {
         AKLOGE("Empty ver4 dictionary structure cannot be created on memory.");
diff --git a/native/jni/src/suggest/policyimpl/dictionary/utils/entry_counters.h b/native/jni/src/suggest/policyimpl/dictionary/utils/entry_counters.h
new file mode 100644
index 0000000..73dc42a
--- /dev/null
+++ b/native/jni/src/suggest/policyimpl/dictionary/utils/entry_counters.h
@@ -0,0 +1,133 @@
+/*
+ * Copyright (C) 2014, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef LATINIME_ENTRY_COUNTERS_H
+#define LATINIME_ENTRY_COUNTERS_H
+
+#include <array>
+
+#include "defines.h"
+
+namespace latinime {
+
+// Copyable but immutable
+class EntryCounts final {
+ public:
+    EntryCounts() : mEntryCounts({{0, 0, 0}}) {}
+
+    EntryCounts(const int unigramCount, const int bigramCount, const int trigramCount)
+            : mEntryCounts({{unigramCount, bigramCount, trigramCount}}) {}
+
+    explicit EntryCounts(const std::array<int, MAX_PREV_WORD_COUNT_FOR_N_GRAM + 1> &counters)
+            : mEntryCounts(counters) {}
+
+    int getUnigramCount() const {
+        return mEntryCounts[0];
+    }
+
+    int getBigramCount() const {
+        return mEntryCounts[1];
+    }
+
+    int getTrigramCount() const {
+        return mEntryCounts[2];
+    }
+
+    int getNgramCount(const size_t n) const {
+        if (n < 1 || n > mEntryCounts.size()) {
+            return 0;
+        }
+        return mEntryCounts[n - 1];
+    }
+
+ private:
+    DISALLOW_ASSIGNMENT_OPERATOR(EntryCounts);
+
+    const std::array<int, MAX_PREV_WORD_COUNT_FOR_N_GRAM + 1> mEntryCounts;
+};
+
+class MutableEntryCounters final {
+ public:
+    MutableEntryCounters() {
+        mEntryCounters.fill(0);
+    }
+
+    MutableEntryCounters(const int unigramCount, const int bigramCount, const int trigramCount)
+            : mEntryCounters({{unigramCount, bigramCount, trigramCount}}) {}
+
+    const EntryCounts getEntryCounts() const {
+        return EntryCounts(mEntryCounters);
+    }
+
+    int getUnigramCount() const {
+        return mEntryCounters[0];
+    }
+
+    int getBigramCount() const {
+        return mEntryCounters[1];
+    }
+
+    int getTrigramCount() const {
+        return mEntryCounters[2];
+    }
+
+    void incrementUnigramCount() {
+        ++mEntryCounters[0];
+    }
+
+    void decrementUnigramCount() {
+        ASSERT(mEntryCounters[0] != 0);
+        --mEntryCounters[0];
+    }
+
+    void incrementBigramCount() {
+        ++mEntryCounters[1];
+    }
+
+    void decrementBigramCount() {
+        ASSERT(mEntryCounters[1] != 0);
+        --mEntryCounters[1];
+    }
+
+    void incrementNgramCount(const size_t n) {
+        if (n < 1 || n > mEntryCounters.size()) {
+            return;
+        }
+        ++mEntryCounters[n - 1];
+    }
+
+    void decrementNgramCount(const size_t n) {
+        if (n < 1 || n > mEntryCounters.size()) {
+            return;
+        }
+        ASSERT(mEntryCounters[n - 1] != 0);
+        --mEntryCounters[n - 1];
+    }
+
+    void setNgramCount(const size_t n, const int count) {
+        if (n < 1 || n > mEntryCounters.size()) {
+            return;
+        }
+        mEntryCounters[n - 1] = count;
+    }
+
+ private:
+    DISALLOW_COPY_AND_ASSIGN(MutableEntryCounters);
+
+    std::array<int, MAX_PREV_WORD_COUNT_FOR_N_GRAM + 1> mEntryCounters;
+};
+} // namespace latinime
+#endif /* LATINIME_ENTRY_COUNTERS_H */
diff --git a/native/jni/src/suggest/policyimpl/dictionary/utils/forgetting_curve_utils.cpp b/native/jni/src/suggest/policyimpl/dictionary/utils/forgetting_curve_utils.cpp
index e5ef2ab..9055f7b 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/utils/forgetting_curve_utils.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/utils/forgetting_curve_utils.cpp
@@ -38,8 +38,7 @@
 // 15 days
 const int ForgettingCurveUtils::DURATION_TO_LOWER_THE_LEVEL_IN_SECONDS = 15 * 24 * 60 * 60;
 
-const float ForgettingCurveUtils::UNIGRAM_COUNT_HARD_LIMIT_WEIGHT = 1.2;
-const float ForgettingCurveUtils::BIGRAM_COUNT_HARD_LIMIT_WEIGHT = 1.2;
+const float ForgettingCurveUtils::ENTRY_COUNT_HARD_LIMIT_WEIGHT = 1.2;
 
 const ForgettingCurveUtils::ProbabilityTable ForgettingCurveUtils::sProbabilityTable;
 
@@ -126,14 +125,22 @@
 }
 
 /* static */ bool ForgettingCurveUtils::needsToDecay(const bool mindsBlockByDecay,
-        const int unigramCount, const int bigramCount, const HeaderPolicy *const headerPolicy) {
-    if (unigramCount >= getUnigramCountHardLimit(headerPolicy->getMaxUnigramCount())) {
+        const EntryCounts &entryCounts, const HeaderPolicy *const headerPolicy) {
+    if (entryCounts.getUnigramCount()
+            >= getEntryCountHardLimit(headerPolicy->getMaxUnigramCount())) {
         // Unigram count exceeds the limit.
         return true;
-    } else if (bigramCount >= getBigramCountHardLimit(headerPolicy->getMaxBigramCount())) {
+    }
+    if (entryCounts.getBigramCount()
+            >= getEntryCountHardLimit(headerPolicy->getMaxBigramCount())) {
         // Bigram count exceeds the limit.
         return true;
     }
+    if (entryCounts.getTrigramCount()
+            >= getEntryCountHardLimit(headerPolicy->getMaxTrigramCount())) {
+        // Trigram count exceeds the limit.
+        return true;
+    }
     if (mindsBlockByDecay) {
         return false;
     }
diff --git a/native/jni/src/suggest/policyimpl/dictionary/utils/forgetting_curve_utils.h b/native/jni/src/suggest/policyimpl/dictionary/utils/forgetting_curve_utils.h
index ccbc4a9..06dcae8 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/utils/forgetting_curve_utils.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/utils/forgetting_curve_utils.h
@@ -21,6 +21,7 @@
 
 #include "defines.h"
 #include "suggest/core/dictionary/property/historical_info.h"
+#include "suggest/policyimpl/dictionary/utils/entry_counters.h"
 
 namespace latinime {
 
@@ -42,22 +43,17 @@
     static bool needsToKeep(const HistoricalInfo *const historicalInfo,
             const HeaderPolicy *const headerPolicy);
 
-    static bool needsToDecay(const bool mindsBlockByDecay, const int unigramCount,
-            const int bigramCount, const HeaderPolicy *const headerPolicy);
+    static bool needsToDecay(const bool mindsBlockByDecay, const EntryCounts &entryCounters,
+            const HeaderPolicy *const headerPolicy);
 
     // TODO: Improve probability computation method and remove this.
     static int getProbabilityBiasForNgram(const int n) {
         return (n - 1) * MULTIPLIER_TWO_IN_PROBABILITY_SCALE;
     }
 
-    AK_FORCE_INLINE static int getUnigramCountHardLimit(const int maxUnigramCount) {
-        return static_cast<int>(static_cast<float>(maxUnigramCount)
-                * UNIGRAM_COUNT_HARD_LIMIT_WEIGHT);
-    }
-
-    AK_FORCE_INLINE static int getBigramCountHardLimit(const int maxBigramCount) {
-        return static_cast<int>(static_cast<float>(maxBigramCount)
-                * BIGRAM_COUNT_HARD_LIMIT_WEIGHT);
+    AK_FORCE_INLINE static int getEntryCountHardLimit(const int maxEntryCount) {
+        return static_cast<int>(static_cast<float>(maxEntryCount)
+                * ENTRY_COUNT_HARD_LIMIT_WEIGHT);
     }
 
  private:
@@ -101,8 +97,7 @@
     static const int OCCURRENCES_TO_RAISE_THE_LEVEL;
     static const int DURATION_TO_LOWER_THE_LEVEL_IN_SECONDS;
 
-    static const float UNIGRAM_COUNT_HARD_LIMIT_WEIGHT;
-    static const float BIGRAM_COUNT_HARD_LIMIT_WEIGHT;
+    static const float ENTRY_COUNT_HARD_LIMIT_WEIGHT;
 
     static const ProbabilityTable sProbabilityTable;
 
diff --git a/tests/src/com/android/inputmethod/latin/BinaryDictionaryDecayingTests.java b/tests/src/com/android/inputmethod/latin/BinaryDictionaryDecayingTests.java
index f9ae9b8..83e523c 100644
--- a/tests/src/com/android/inputmethod/latin/BinaryDictionaryDecayingTests.java
+++ b/tests/src/com/android/inputmethod/latin/BinaryDictionaryDecayingTests.java
@@ -684,8 +684,8 @@
 
         binaryDictionary.addUnigramEntry("", DUMMY_PROBABILITY, "" /* shortcutTarget */,
                 BinaryDictionary.NOT_A_PROBABILITY /* shortcutProbability */,
-                true /* isBeginningOfSentence */, true /* isNotAWord */, false /* isBlacklisted */,
-                mCurrentTime);
+                true /* isBeginningOfSentence */, true /* isNotAWord */,
+                false /* isPossiblyOffensive */, mCurrentTime);
         final NgramContext beginningOfSentenceContext = NgramContext.BEGINNING_OF_SENTENCE;
         onInputWordWithBeginningOfSentenceContext(binaryDictionary, "aaa", true /* isValidWord */);
         assertFalse(binaryDictionary.isValidNgram(beginningOfSentenceContext, "aaa"));
diff --git a/tests/src/com/android/inputmethod/latin/BinaryDictionaryTests.java b/tests/src/com/android/inputmethod/latin/BinaryDictionaryTests.java
index a640a98..0a1f5a3 100644
--- a/tests/src/com/android/inputmethod/latin/BinaryDictionaryTests.java
+++ b/tests/src/com/android/inputmethod/latin/BinaryDictionaryTests.java
@@ -200,7 +200,7 @@
         // Too long short cut.
         binaryDictionary.addUnigramEntry("a", probability, invalidLongWord,
                 10 /* shortcutProbability */, false /* isBeginningOfSentence */,
-                false /* isNotAWord */, false /* isBlacklisted */,
+                false /* isNotAWord */, false /* isPossiblyOffensive */,
                 BinaryDictionary.NOT_A_VALID_TIMESTAMP);
         addUnigramWord(binaryDictionary, "abc", probability);
         final int updatedProbability = 200;
@@ -221,7 +221,8 @@
         binaryDictionary.addUnigramEntry(word, probability, "" /* shortcutTarget */,
                 BinaryDictionary.NOT_A_PROBABILITY /* shortcutProbability */,
                 false /* isBeginningOfSentence */, false /* isNotAWord */,
-                false /* isBlacklisted */, BinaryDictionary.NOT_A_VALID_TIMESTAMP /* timestamp */);
+                false /* isPossiblyOffensive */,
+                BinaryDictionary.NOT_A_VALID_TIMESTAMP /* timestamp */);
     }
 
     private static void addBigramWords(final BinaryDictionary binaryDictionary, final String word0,
@@ -971,11 +972,11 @@
             final String word = CodePointUtils.generateWord(random, codePointSet);
             final int unigramProbability = random.nextInt(0xFF);
             final boolean isNotAWord = random.nextBoolean();
-            final boolean isBlacklisted = random.nextBoolean();
+            final boolean isPossiblyOffensive = random.nextBoolean();
             // TODO: Add tests for historical info.
             binaryDictionary.addUnigramEntry(word, unigramProbability,
                     null /* shortcutTarget */, BinaryDictionary.NOT_A_PROBABILITY,
-                    false /* isBeginningOfSentence */, isNotAWord, isBlacklisted,
+                    false /* isBeginningOfSentence */, isNotAWord, isPossiblyOffensive,
                     BinaryDictionary.NOT_A_VALID_TIMESTAMP);
             if (binaryDictionary.needsToRunGC(false /* mindsBlockByGC */)) {
                 binaryDictionary.flushWithGC();
@@ -987,7 +988,7 @@
             assertEquals(word, wordProperty.mWord);
             assertTrue(wordProperty.isValid());
             assertEquals(isNotAWord, wordProperty.mIsNotAWord);
-            assertEquals(isBlacklisted, wordProperty.mIsBlacklistEntry);
+            assertEquals(isPossiblyOffensive, wordProperty.mIsPossiblyOffensive);
             assertEquals(false, wordProperty.mHasNgrams);
             assertEquals(false, wordProperty.mHasShortcuts);
             assertEquals(unigramProbability, wordProperty.mProbabilityInfo.mProbability);
@@ -1142,7 +1143,7 @@
         final int shortcutProbability = 10;
         binaryDictionary.addUnigramEntry("aaa", unigramProbability, "zzz",
                 shortcutProbability, false /* isBeginningOfSentence */,
-                false /* isNotAWord */, false /* isBlacklisted */, 0 /* timestamp */);
+                false /* isNotAWord */, false /* isPossiblyOffensive */, 0 /* timestamp */);
         WordProperty wordProperty = binaryDictionary.getWordProperty("aaa",
                 false /* isBeginningOfSentence */);
         assertEquals(1, wordProperty.mShortcutTargets.size());
@@ -1151,7 +1152,7 @@
         final int updatedShortcutProbability = 2;
         binaryDictionary.addUnigramEntry("aaa", unigramProbability, "zzz",
                 updatedShortcutProbability, false /* isBeginningOfSentence */,
-                false /* isNotAWord */, false /* isBlacklisted */, 0 /* timestamp */);
+                false /* isNotAWord */, false /* isPossiblyOffensive */, 0 /* timestamp */);
         wordProperty = binaryDictionary.getWordProperty("aaa",
                 false /* isBeginningOfSentence */);
         assertEquals(1, wordProperty.mShortcutTargets.size());
@@ -1160,7 +1161,7 @@
                 wordProperty.mShortcutTargets.get(0).getProbability());
         binaryDictionary.addUnigramEntry("aaa", unigramProbability, "yyy",
                 shortcutProbability, false /* isBeginningOfSentence */, false /* isNotAWord */,
-                false /* isBlacklisted */, 0 /* timestamp */);
+                false /* isPossiblyOffensive */, 0 /* timestamp */);
         final HashMap<String, Integer> shortcutTargets = new HashMap<>();
         shortcutTargets.put("zzz", updatedShortcutProbability);
         shortcutTargets.put("yyy", shortcutProbability);
@@ -1223,7 +1224,7 @@
             final int unigramProbability = unigramProbabilities.get(word);
             binaryDictionary.addUnigramEntry(word, unigramProbability, shortcutTarget,
                     shortcutProbability, false /* isBeginningOfSentence */, false /* isNotAWord */,
-                    false /* isBlacklisted */, 0 /* timestamp */);
+                    false /* isPossiblyOffensive */, 0 /* timestamp */);
             if (shortcutTargets.containsKey(word)) {
                 final HashMap<String, Integer> shortcutTargetsOfWord = shortcutTargets.get(word);
                 shortcutTargetsOfWord.put(shortcutTarget, shortcutProbability);
@@ -1255,6 +1256,15 @@
         }
     }
 
+    public void testPossiblyOffensiveAttributeMaintained() {
+        final BinaryDictionary binaryDictionary =
+                getEmptyBinaryDictionary(FormatSpec.VERSION4_DEV);
+        binaryDictionary.addUnigramEntry("ddd", 100, null, Dictionary.NOT_A_PROBABILITY,
+                false, true, true, 0);
+        WordProperty wordProperty = binaryDictionary.getWordProperty("ddd", false);
+        assertEquals(true, wordProperty.mIsPossiblyOffensive);
+    }
+    
     public void testDictMigration() {
         for (final int formatVersion : DICT_FORMAT_VERSIONS) {
             testDictMigration(FormatSpec.VERSION4_ONLY_FOR_TESTING, formatVersion);
@@ -1271,10 +1281,10 @@
         final int shortcutProbability = 10;
         binaryDictionary.addUnigramEntry("ccc", unigramProbability, "xxx", shortcutProbability,
                 false /* isBeginningOfSentence */, false /* isNotAWord */,
-                false /* isBlacklisted */, 0 /* timestamp */);
+                false /* isPossiblyOffensive */, 0 /* timestamp */);
         binaryDictionary.addUnigramEntry("ddd", unigramProbability, null /* shortcutTarget */,
                 Dictionary.NOT_A_PROBABILITY, false /* isBeginningOfSentence */,
-                true /* isNotAWord */, true /* isBlacklisted */, 0 /* timestamp */);
+                true /* isNotAWord */, true /* isPossiblyOffensive */, 0 /* timestamp */);
         binaryDictionary.addNgramEntry(NgramContext.BEGINNING_OF_SENTENCE,
                 "aaa", bigramProbability, 0 /* timestamp */);
         assertEquals(unigramProbability, binaryDictionary.getFrequency("aaa"));
@@ -1298,7 +1308,7 @@
         assertEquals("xxx", wordProperty.mShortcutTargets.get(0).mWord);
         wordProperty = binaryDictionary.getWordProperty("ddd",
                 false /* isBeginningOfSentence */);
-        assertTrue(wordProperty.mIsBlacklistEntry);
+        assertTrue(wordProperty.mIsPossiblyOffensive);
         assertTrue(wordProperty.mIsNotAWord);
     }
 
diff --git a/tests/src/com/android/inputmethod/latin/FusionDictionaryTests.java b/tests/src/com/android/inputmethod/latin/FusionDictionaryTests.java
index 09309bc..07d7c32 100644
--- a/tests/src/com/android/inputmethod/latin/FusionDictionaryTests.java
+++ b/tests/src/com/android/inputmethod/latin/FusionDictionaryTests.java
@@ -35,16 +35,20 @@
         FusionDictionary dict = new FusionDictionary(new PtNodeArray(),
                 new DictionaryOptions(new HashMap<String,String>()));
 
-        dict.add("abc", new ProbabilityInfo(10), null, false /* isNotAWord */);
+        dict.add("abc", new ProbabilityInfo(10), null, false /* isNotAWord */,
+                false /* isPossiblyOffensive */);
         assertNull(FusionDictionary.findWordInTree(dict.mRootNodeArray, "aaa"));
         assertNotNull(FusionDictionary.findWordInTree(dict.mRootNodeArray, "abc"));
 
-        dict.add("aa", new ProbabilityInfo(10), null, false /* isNotAWord */);
+        dict.add("aa", new ProbabilityInfo(10), null, false /* isNotAWord */,
+                false /* isPossiblyOffensive */);
         assertNull(FusionDictionary.findWordInTree(dict.mRootNodeArray, "aaa"));
         assertNotNull(FusionDictionary.findWordInTree(dict.mRootNodeArray, "aa"));
 
-        dict.add("babcd", new ProbabilityInfo(10), null, false /* isNotAWord */);
-        dict.add("bacde", new ProbabilityInfo(10), null, false /* isNotAWord */);
+        dict.add("babcd", new ProbabilityInfo(10), null, false /* isNotAWord */,
+                false /* isPossiblyOffensive */);
+        dict.add("bacde", new ProbabilityInfo(10), null, false /* isNotAWord */,
+                false /* isPossiblyOffensive */);
         assertNull(FusionDictionary.findWordInTree(dict.mRootNodeArray, "ba"));
         assertNotNull(FusionDictionary.findWordInTree(dict.mRootNodeArray, "babcd"));
         assertNotNull(FusionDictionary.findWordInTree(dict.mRootNodeArray, "bacde"));
diff --git a/tests/src/com/android/inputmethod/latin/makedict/BinaryDictDecoderEncoderTests.java b/tests/src/com/android/inputmethod/latin/makedict/BinaryDictDecoderEncoderTests.java
index 637ea4e..05616d8 100644
--- a/tests/src/com/android/inputmethod/latin/makedict/BinaryDictDecoderEncoderTests.java
+++ b/tests/src/com/android/inputmethod/latin/makedict/BinaryDictDecoderEncoderTests.java
@@ -149,7 +149,8 @@
                 }
             }
             dict.add(word, new ProbabilityInfo(UNIGRAM_FREQ),
-                    (shortcutMap == null) ? null : shortcuts, false /* isNotAWord */);
+                    (shortcutMap == null) ? null : shortcuts, false /* isNotAWord */,
+                    false /* isPossiblyOffensive */);
         }
     }
 
diff --git a/tests/src/com/android/inputmethod/latin/makedict/BinaryDictEncoderUtils.java b/tests/src/com/android/inputmethod/latin/makedict/BinaryDictEncoderUtils.java
index 2d536d8..09bf221 100644
--- a/tests/src/com/android/inputmethod/latin/makedict/BinaryDictEncoderUtils.java
+++ b/tests/src/com/android/inputmethod/latin/makedict/BinaryDictEncoderUtils.java
@@ -572,12 +572,12 @@
      * @param hasShortcuts whether the PtNode has shortcuts.
      * @param hasBigrams whether the PtNode has bigrams.
      * @param isNotAWord whether the PtNode is not a word.
-     * @param isBlackListEntry whether the PtNode is a blacklist entry.
+     * @param isPossiblyOffensive whether the PtNode is a possibly offensive entry.
      * @return the flags
      */
     static int makePtNodeFlags(final boolean hasMultipleChars, final boolean isTerminal,
             final int childrenAddressSize, final boolean hasShortcuts, final boolean hasBigrams,
-            final boolean isNotAWord, final boolean isBlackListEntry) {
+            final boolean isNotAWord, final boolean isPossiblyOffensive) {
         byte flags = 0;
         if (hasMultipleChars) flags |= FormatSpec.FLAG_HAS_MULTIPLE_CHARS;
         if (isTerminal) flags |= FormatSpec.FLAG_IS_TERMINAL;
@@ -600,7 +600,7 @@
         if (hasShortcuts) flags |= FormatSpec.FLAG_HAS_SHORTCUT_TARGETS;
         if (hasBigrams) flags |= FormatSpec.FLAG_HAS_BIGRAMS;
         if (isNotAWord) flags |= FormatSpec.FLAG_IS_NOT_A_WORD;
-        if (isBlackListEntry) flags |= FormatSpec.FLAG_IS_BLACKLISTED;
+        if (isPossiblyOffensive) flags |= FormatSpec.FLAG_IS_POSSIBLY_OFFENSIVE;
         return flags;
     }
 
@@ -609,7 +609,7 @@
                 getByteSize(childrenOffset),
                 node.mShortcutTargets != null && !node.mShortcutTargets.isEmpty(),
                 node.mBigrams != null && !node.mBigrams.isEmpty(),
-                node.mIsNotAWord, node.mIsBlacklistEntry);
+                node.mIsNotAWord, node.mIsPossiblyOffensive);
     }
 
     /**
diff --git a/tests/src/com/android/inputmethod/latin/makedict/FusionDictionary.java b/tests/src/com/android/inputmethod/latin/makedict/FusionDictionary.java
index 4a8c178..ea5bc56 100644
--- a/tests/src/com/android/inputmethod/latin/makedict/FusionDictionary.java
+++ b/tests/src/com/android/inputmethod/latin/makedict/FusionDictionary.java
@@ -89,7 +89,7 @@
         int mTerminalId; // NOT_A_TERMINAL == mTerminalId indicates this is not a terminal.
         PtNodeArray mChildren;
         boolean mIsNotAWord; // Only a shortcut
-        boolean mIsBlacklistEntry;
+        boolean mIsPossiblyOffensive;
         // mCachedSize and mCachedAddressBefore/AfterUpdate are helpers for binary dictionary
         // generation. Before and After always hold the same value except during dictionary
         // address compression, where the update process needs to know about both values at the
@@ -102,7 +102,7 @@
 
         public PtNode(final int[] chars, final ArrayList<WeightedString> shortcutTargets,
                 final ArrayList<WeightedString> bigrams, final ProbabilityInfo probabilityInfo,
-                final boolean isNotAWord, final boolean isBlacklistEntry) {
+                final boolean isNotAWord, final boolean isPossiblyOffensive) {
             mChars = chars;
             mProbabilityInfo = probabilityInfo;
             mTerminalId = probabilityInfo == null ? NOT_A_TERMINAL : probabilityInfo.mProbability;
@@ -110,12 +110,12 @@
             mBigrams = bigrams;
             mChildren = null;
             mIsNotAWord = isNotAWord;
-            mIsBlacklistEntry = isBlacklistEntry;
+            mIsPossiblyOffensive = isPossiblyOffensive;
         }
 
         public PtNode(final int[] chars, final ArrayList<WeightedString> shortcutTargets,
                 final ArrayList<WeightedString> bigrams, final ProbabilityInfo probabilityInfo,
-                final boolean isNotAWord, final boolean isBlacklistEntry,
+                final boolean isNotAWord, final boolean isPossiblyOffensive,
                 final PtNodeArray children) {
             mChars = chars;
             mProbabilityInfo = probabilityInfo;
@@ -123,7 +123,7 @@
             mBigrams = bigrams;
             mChildren = children;
             mIsNotAWord = isNotAWord;
-            mIsBlacklistEntry = isBlacklistEntry;
+            mIsPossiblyOffensive = isPossiblyOffensive;
         }
 
         public void addChild(PtNode n) {
@@ -153,8 +153,8 @@
             return mIsNotAWord;
         }
 
-        public boolean getIsBlacklistEntry() {
-            return mIsBlacklistEntry;
+        public boolean getIsPossiblyOffensive() {
+            return mIsPossiblyOffensive;
         }
 
         public ArrayList<WeightedString> getShortcutTargets() {
@@ -238,7 +238,7 @@
         private void update(final ProbabilityInfo probabilityInfo,
                 final ArrayList<WeightedString> shortcutTargets,
                 final ArrayList<WeightedString> bigrams,
-                final boolean isNotAWord, final boolean isBlacklistEntry) {
+                final boolean isNotAWord, final boolean isPossiblyOffensive) {
             mProbabilityInfo = ProbabilityInfo.max(mProbabilityInfo, probabilityInfo);
             if (shortcutTargets != null) {
                 if (mShortcutTargets == null) {
@@ -275,7 +275,7 @@
                 }
             }
             mIsNotAWord = isNotAWord;
-            mIsBlacklistEntry = isBlacklistEntry;
+            mIsPossiblyOffensive = isPossiblyOffensive;
         }
     }
 
@@ -323,24 +323,12 @@
      * @param probabilityInfo probability information of the word.
      * @param shortcutTargets a list of shortcut targets for this word, or null.
      * @param isNotAWord true if this should not be considered a word (e.g. shortcut only)
+     * @param isPossiblyOffensive true if this word is possibly offensive
      */
     public void add(final String word, final ProbabilityInfo probabilityInfo,
-            final ArrayList<WeightedString> shortcutTargets, final boolean isNotAWord) {
-        add(getCodePoints(word), probabilityInfo, shortcutTargets, isNotAWord,
-                false /* isBlacklistEntry */);
-    }
-
-    /**
-     * Helper method to add a blacklist entry as a string.
-     *
-     * @param word the word to add as a blacklist entry.
-     * @param shortcutTargets a list of shortcut targets for this word, or null.
-     * @param isNotAWord true if this is not a word for spellcheking purposes (shortcut only or so)
-     */
-    public void addBlacklistEntry(final String word,
-            final ArrayList<WeightedString> shortcutTargets, final boolean isNotAWord) {
-        add(getCodePoints(word), new ProbabilityInfo(0), shortcutTargets, isNotAWord,
-                true /* isBlacklistEntry */);
+            final ArrayList<WeightedString> shortcutTargets, final boolean isNotAWord,
+            final boolean isPossiblyOffensive) {
+        add(getCodePoints(word), probabilityInfo, shortcutTargets, isNotAWord, isPossiblyOffensive);
     }
 
     /**
@@ -375,7 +363,7 @@
             final PtNode ptNode1 = findWordInTree(mRootNodeArray, word1);
             if (ptNode1 == null) {
                 add(getCodePoints(word1), new ProbabilityInfo(0), null, false /* isNotAWord */,
-                        false /* isBlacklistEntry */);
+                        false /* isPossiblyOffensive */);
                 // The PtNode for the first word may have moved by the above insertion,
                 // if word1 and word2 share a common stem that happens not to have been
                 // a cutting point until now. In this case, we need to refresh ptNode.
@@ -397,11 +385,11 @@
      * @param probabilityInfo the probability information of the word.
      * @param shortcutTargets an optional list of shortcut targets for this word (null if none).
      * @param isNotAWord true if this is not a word for spellcheking purposes (shortcut only or so)
-     * @param isBlacklistEntry true if this is a blacklisted word, false otherwise
+     * @param isPossiblyOffensive true if this word is possibly offensive
      */
     private void add(final int[] word, final ProbabilityInfo probabilityInfo,
             final ArrayList<WeightedString> shortcutTargets,
-            final boolean isNotAWord, final boolean isBlacklistEntry) {
+            final boolean isNotAWord, final boolean isPossiblyOffensive) {
         assert(probabilityInfo.mProbability <= FormatSpec.MAX_TERMINAL_FREQUENCY);
         if (word.length >= Constants.DICTIONARY_MAX_WORD_LENGTH) {
             MakedictLog.w("Ignoring a word that is too long: word.length = " + word.length);
@@ -431,7 +419,7 @@
             final int insertionIndex = findInsertionIndex(currentNodeArray, word[charIndex]);
             final PtNode newPtNode = new PtNode(Arrays.copyOfRange(word, charIndex, word.length),
                     shortcutTargets, null /* bigrams */, probabilityInfo, isNotAWord,
-                    isBlacklistEntry);
+                    isPossiblyOffensive);
             currentNodeArray.mData.add(insertionIndex, newPtNode);
             if (DBG) checkStack(currentNodeArray);
         } else {
@@ -442,14 +430,14 @@
                     // should end already exists as is. Since the old PtNode was not a terminal,
                     // make it one by filling in its frequency and other attributes
                     currentPtNode.update(probabilityInfo, shortcutTargets, null, isNotAWord,
-                            isBlacklistEntry);
+                            isPossiblyOffensive);
                 } else {
                     // The new word matches the full old word and extends past it.
                     // We only have to create a new node and add it to the end of this.
                     final PtNode newNode = new PtNode(
                             Arrays.copyOfRange(word, charIndex + differentCharIndex, word.length),
                                     shortcutTargets, null /* bigrams */, probabilityInfo,
-                                    isNotAWord, isBlacklistEntry);
+                                    isNotAWord, isPossiblyOffensive);
                     currentPtNode.mChildren = new PtNodeArray();
                     currentPtNode.mChildren.mData.add(newNode);
                 }
@@ -459,7 +447,7 @@
                     // new shortcuts to the existing shortcut list if it already exists.
                     currentPtNode.update(probabilityInfo, shortcutTargets, null,
                             currentPtNode.mIsNotAWord && isNotAWord,
-                            currentPtNode.mIsBlacklistEntry || isBlacklistEntry);
+                            currentPtNode.mIsPossiblyOffensive || isPossiblyOffensive);
                 } else {
                     // Partial prefix match only. We have to replace the current node with a node
                     // containing the current prefix and create two new ones for the tails.
@@ -468,7 +456,7 @@
                             Arrays.copyOfRange(currentPtNode.mChars, differentCharIndex,
                                     currentPtNode.mChars.length), currentPtNode.mShortcutTargets,
                             currentPtNode.mBigrams, currentPtNode.mProbabilityInfo,
-                            currentPtNode.mIsNotAWord, currentPtNode.mIsBlacklistEntry,
+                            currentPtNode.mIsNotAWord, currentPtNode.mIsPossiblyOffensive,
                             currentPtNode.mChildren);
                     newChildren.mData.add(newOldWord);
 
@@ -477,17 +465,17 @@
                         newParent = new PtNode(
                                 Arrays.copyOfRange(currentPtNode.mChars, 0, differentCharIndex),
                                 shortcutTargets, null /* bigrams */, probabilityInfo,
-                                isNotAWord, isBlacklistEntry, newChildren);
+                                isNotAWord, isPossiblyOffensive, newChildren);
                     } else {
                         newParent = new PtNode(
                                 Arrays.copyOfRange(currentPtNode.mChars, 0, differentCharIndex),
                                 null /* shortcutTargets */, null /* bigrams */,
                                 null /* probabilityInfo */, false /* isNotAWord */,
-                                false /* isBlacklistEntry */, newChildren);
+                                false /* isPossiblyOffensive */, newChildren);
                         final PtNode newWord = new PtNode(Arrays.copyOfRange(word,
                                 charIndex + differentCharIndex, word.length),
                                 shortcutTargets, null /* bigrams */, probabilityInfo,
-                                isNotAWord, isBlacklistEntry);
+                                isNotAWord, isPossiblyOffensive);
                         final int addIndex = word[charIndex + differentCharIndex]
                                 > currentPtNode.mChars[differentCharIndex] ? 1 : 0;
                         newChildren.mData.add(addIndex, newWord);
@@ -549,7 +537,7 @@
         final ArrayList<PtNode> data = nodeArray.mData;
         final PtNode reference = new PtNode(new int[] { character },
                 null /* shortcutTargets */, null /* bigrams */, null /* probabilityInfo */,
-                false /* isNotAWord */, false /* isBlacklistEntry */);
+                false /* isNotAWord */, false /* isPossiblyOffensive */);
         int result = Collections.binarySearch(data, reference, PTNODE_COMPARATOR);
         return result >= 0 ? result : -result - 1;
     }
@@ -686,7 +674,7 @@
                         return new WordProperty(mCurrentString.toString(),
                                 currentPtNode.mProbabilityInfo,
                                 currentPtNode.mShortcutTargets, currentPtNode.mBigrams,
-                                currentPtNode.mIsNotAWord, currentPtNode.mIsBlacklistEntry);
+                                currentPtNode.mIsNotAWord, currentPtNode.mIsPossiblyOffensive);
                     }
                 } else {
                     mPositions.removeLast();
diff --git a/tests/src/com/android/inputmethod/latin/makedict/Ver2DictDecoder.java b/tests/src/com/android/inputmethod/latin/makedict/Ver2DictDecoder.java
index 6227f13..7894f0b 100644
--- a/tests/src/com/android/inputmethod/latin/makedict/Ver2DictDecoder.java
+++ b/tests/src/com/android/inputmethod/latin/makedict/Ver2DictDecoder.java
@@ -283,13 +283,9 @@
 
         // Insert unigrams into the fusion dictionary.
         for (final WordProperty wordProperty : wordProperties) {
-            if (wordProperty.mIsBlacklistEntry) {
-                fusionDict.addBlacklistEntry(wordProperty.mWord, wordProperty.mShortcutTargets,
-                        wordProperty.mIsNotAWord);
-            } else {
-                fusionDict.add(wordProperty.mWord, wordProperty.mProbabilityInfo,
-                        wordProperty.mShortcutTargets, wordProperty.mIsNotAWord);
-            }
+            fusionDict.add(wordProperty.mWord, wordProperty.mProbabilityInfo,
+                    wordProperty.mShortcutTargets, wordProperty.mIsNotAWord,
+                    wordProperty.mIsPossiblyOffensive);
         }
         // Insert bigrams into the fusion dictionary.
         for (final WordProperty wordProperty : wordProperties) {
diff --git a/tests/src/com/android/inputmethod/latin/makedict/Ver2DictEncoderTests.java b/tests/src/com/android/inputmethod/latin/makedict/Ver2DictEncoderTests.java
index 9104c2f..988cd37 100644
--- a/tests/src/com/android/inputmethod/latin/makedict/Ver2DictEncoderTests.java
+++ b/tests/src/com/android/inputmethod/latin/makedict/Ver2DictEncoderTests.java
@@ -85,7 +85,8 @@
                 }
             }
             dict.add(word, new ProbabilityInfo(UNIGRAM_FREQ),
-                    (shortcutMap == null) ? null : shortcuts, false /* isNotAWord */);
+                    (shortcutMap == null) ? null : shortcuts, false /* isNotAWord */,
+                    false /* isPossiblyOffensive */);
         }
     }
 }
diff --git a/tests/src/com/android/inputmethod/latin/makedict/Ver4DictDecoder.java b/tests/src/com/android/inputmethod/latin/makedict/Ver4DictDecoder.java
index 0da915a..7c1ae2f 100644
--- a/tests/src/com/android/inputmethod/latin/makedict/Ver4DictDecoder.java
+++ b/tests/src/com/android/inputmethod/latin/makedict/Ver4DictDecoder.java
@@ -88,13 +88,9 @@
 
         // Insert unigrams into the fusion dictionary.
         for (final WordProperty wordProperty : wordProperties) {
-            if (wordProperty.mIsBlacklistEntry) {
-                fusionDict.addBlacklistEntry(wordProperty.mWord, wordProperty.mShortcutTargets,
-                        wordProperty.mIsNotAWord);
-            } else {
-                fusionDict.add(wordProperty.mWord, wordProperty.mProbabilityInfo,
-                        wordProperty.mShortcutTargets, wordProperty.mIsNotAWord);
-            }
+            fusionDict.add(wordProperty.mWord, wordProperty.mProbabilityInfo,
+                    wordProperty.mShortcutTargets, wordProperty.mIsNotAWord,
+                    wordProperty.mIsPossiblyOffensive);
         }
         // Insert bigrams into the fusion dictionary.
         // TODO: Support ngrams.
diff --git a/tests/src/com/android/inputmethod/latin/makedict/Ver4DictEncoder.java b/tests/src/com/android/inputmethod/latin/makedict/Ver4DictEncoder.java
index 3262a16..1554219 100644
--- a/tests/src/com/android/inputmethod/latin/makedict/Ver4DictEncoder.java
+++ b/tests/src/com/android/inputmethod/latin/makedict/Ver4DictEncoder.java
@@ -79,7 +79,7 @@
                 if (!binaryDict.addUnigramEntry(wordProperty.mWord, wordProperty.getProbability(),
                         null /* shortcutTarget */, 0 /* shortcutProbability */,
                         wordProperty.mIsBeginningOfSentence, wordProperty.mIsNotAWord,
-                        wordProperty.mIsBlacklistEntry, 0 /* timestamp */)) {
+                        wordProperty.mIsPossiblyOffensive, 0 /* timestamp */)) {
                     MakedictLog.e("Cannot add unigram entry for " + wordProperty.mWord);
                 }
             } else {
@@ -88,7 +88,7 @@
                             wordProperty.getProbability(),
                             shortcutTarget.mWord, shortcutTarget.getProbability(),
                             wordProperty.mIsBeginningOfSentence, wordProperty.mIsNotAWord,
-                            wordProperty.mIsBlacklistEntry, 0 /* timestamp */)) {
+                            wordProperty.mIsPossiblyOffensive, 0 /* timestamp */)) {
                         MakedictLog.e("Cannot add unigram entry for " + wordProperty.mWord
                                 + ", shortcutTarget: " + shortcutTarget.mWord);
                         return;
diff --git a/tools/dicttool/src/com/android/inputmethod/latin/dicttool/CombinedInputOutput.java b/tools/dicttool/src/com/android/inputmethod/latin/dicttool/CombinedInputOutput.java
index 23cbee8..48d2e59 100644
--- a/tools/dicttool/src/com/android/inputmethod/latin/dicttool/CombinedInputOutput.java
+++ b/tools/dicttool/src/com/android/inputmethod/latin/dicttool/CombinedInputOutput.java
@@ -106,7 +106,7 @@
             if (args[0].matches(CombinedFormatUtils.WORD_TAG + "=.*")) {
                 if (null != word) {
                     dict.add(word, probabilityInfo, shortcuts.isEmpty() ? null : shortcuts,
-                            isNotAWord);
+                            isNotAWord, false /* isPossiblyOffensive */);
                     for (WeightedString s : bigrams) {
                         dict.setBigram(word, s.mWord, s.mProbabilityInfo);
                     }
@@ -189,7 +189,8 @@
             }
         }
         if (null != word) {
-            dict.add(word, probabilityInfo, shortcuts.isEmpty() ? null : shortcuts, isNotAWord);
+            dict.add(word, probabilityInfo, shortcuts.isEmpty() ? null : shortcuts, isNotAWord,
+                    false /* isPossiblyOffensive */);
             for (WeightedString s : bigrams) {
                 dict.setBigram(word, s.mWord, s.mProbabilityInfo);
             }
diff --git a/tools/dicttool/src/com/android/inputmethod/latin/dicttool/Diff.java b/tools/dicttool/src/com/android/inputmethod/latin/dicttool/Diff.java
index c6818ce..f97fbef 100644
--- a/tools/dicttool/src/com/android/inputmethod/latin/dicttool/Diff.java
+++ b/tools/dicttool/src/com/android/inputmethod/latin/dicttool/Diff.java
@@ -128,10 +128,10 @@
                             + word0Property.mIsNotAWord + " -> " + word1PtNode.getIsNotAWord());
                     hasDifferences = true;
                 }
-                if (word0Property.mIsBlacklistEntry != word1PtNode.getIsBlacklistEntry()) {
-                    System.out.println("Blacklist: " + word0Property.mWord + " "
-                            + word0Property.mIsBlacklistEntry + " -> "
-                            + word1PtNode.getIsBlacklistEntry());
+                if (word0Property.mIsPossiblyOffensive != word1PtNode.getIsPossiblyOffensive()) {
+                    System.out.println("Possibly-offensive: " + word0Property.mWord + " "
+                            + word0Property.mIsPossiblyOffensive + " -> "
+                            + word1PtNode.getIsPossiblyOffensive());
                     hasDifferences = true;
                 }
                 hasDifferences |= hasAttributesDifferencesAndPrintThemIfAny(word0Property.mWord,
diff --git a/tools/dicttool/src/com/android/inputmethod/latin/dicttool/Info.java b/tools/dicttool/src/com/android/inputmethod/latin/dicttool/Info.java
index 2850e1f..3df3737 100644
--- a/tools/dicttool/src/com/android/inputmethod/latin/dicttool/Info.java
+++ b/tools/dicttool/src/com/android/inputmethod/latin/dicttool/Info.java
@@ -76,8 +76,8 @@
         if (ptNode.getIsNotAWord()) {
             System.out.println("  Is not a word");
         }
-        if (ptNode.getIsBlacklistEntry()) {
-            System.out.println("  Is a blacklist entry");
+        if (ptNode.getIsPossiblyOffensive()) {
+            System.out.println("  Is possibly offensive");
         }
         final ArrayList<WeightedString> shortcutTargets = ptNode.getShortcutTargets();
         if (null == shortcutTargets || shortcutTargets.isEmpty()) {
diff --git a/tools/dicttool/src/com/android/inputmethod/latin/dicttool/XmlDictInputOutput.java b/tools/dicttool/src/com/android/inputmethod/latin/dicttool/XmlDictInputOutput.java
index cd3ce70..7f33379 100644
--- a/tools/dicttool/src/com/android/inputmethod/latin/dicttool/XmlDictInputOutput.java
+++ b/tools/dicttool/src/com/android/inputmethod/latin/dicttool/XmlDictInputOutput.java
@@ -90,7 +90,8 @@
             for (final String shortcutOnly : mShortcutsMap.keySet()) {
                 if (dict.hasWord(shortcutOnly)) continue;
                 dict.add(shortcutOnly, new ProbabilityInfo(SHORTCUT_ONLY_WORD_PROBABILITY),
-                        mShortcutsMap.get(shortcutOnly), true /* isNotAWord */);
+                        mShortcutsMap.get(shortcutOnly), true /* isNotAWord */,
+                        false /* isPossiblyOffensive */);
             }
             mDictionary = null;
             mShortcutsMap.clear();
@@ -138,7 +139,7 @@
         public void endElement(String uri, String localName, String qName) {
             if (WORD == mState) {
                 mDictionary.add(mWord, new ProbabilityInfo(mFreq), mShortcutsMap.get(mWord),
-                        false /* isNotAWord */);
+                        false /* isNotAWord */, false /* isPossiblyOffensive */);
                 mState = START;
             }
         }
diff --git a/tools/dicttool/tests/com/android/inputmethod/latin/dicttool/BinaryDictOffdeviceUtilsTests.java b/tools/dicttool/tests/com/android/inputmethod/latin/dicttool/BinaryDictOffdeviceUtilsTests.java
index 0236a44..179a887 100644
--- a/tools/dicttool/tests/com/android/inputmethod/latin/dicttool/BinaryDictOffdeviceUtilsTests.java
+++ b/tools/dicttool/tests/com/android/inputmethod/latin/dicttool/BinaryDictOffdeviceUtilsTests.java
@@ -54,11 +54,16 @@
         testOptions.mAttributes.put(DictionaryHeader.DICTIONARY_LOCALE_KEY, LOCALE);
         testOptions.mAttributes.put(DictionaryHeader.DICTIONARY_ID_KEY, ID);
         final FusionDictionary dict = new FusionDictionary(new PtNodeArray(), testOptions);
-        dict.add("foo", new ProbabilityInfo(TEST_FREQ), null, false /* isNotAWord */);
-        dict.add("fta", new ProbabilityInfo(1), null, false /* isNotAWord */);
-        dict.add("ftb", new ProbabilityInfo(1), null, false /* isNotAWord */);
-        dict.add("bar", new ProbabilityInfo(1), null, false /* isNotAWord */);
-        dict.add("fool", new ProbabilityInfo(1), null, false /* isNotAWord */);
+        dict.add("foo", new ProbabilityInfo(TEST_FREQ), null, false /* isNotAWord */,
+                false /* isPossiblyOffensive */);
+        dict.add("fta", new ProbabilityInfo(1), null, false /* isNotAWord */,
+                false /* isPossiblyOffensive */);
+        dict.add("ftb", new ProbabilityInfo(1), null, false /* isNotAWord */,
+                false /* isPossiblyOffensive */);
+        dict.add("bar", new ProbabilityInfo(1), null, false /* isNotAWord */,
+                false /* isPossiblyOffensive */);
+        dict.add("fool", new ProbabilityInfo(1), null, false /* isNotAWord */,
+                false /* isPossiblyOffensive */);
 
         final File dst = File.createTempFile("testGetRawDict", ".tmp");
         dst.deleteOnExit();
diff --git a/tools/dicttool/tests/com/android/inputmethod/latin/makedict/BinaryDictEncoderFlattenTreeTests.java b/tools/dicttool/tests/com/android/inputmethod/latin/makedict/BinaryDictEncoderFlattenTreeTests.java
index aa228e7..dc9981d 100644
--- a/tools/dicttool/tests/com/android/inputmethod/latin/makedict/BinaryDictEncoderFlattenTreeTests.java
+++ b/tools/dicttool/tests/com/android/inputmethod/latin/makedict/BinaryDictEncoderFlattenTreeTests.java
@@ -33,11 +33,16 @@
     public void testFlattenNodes() {
         final FusionDictionary dict = new FusionDictionary(new PtNodeArray(),
                 new DictionaryOptions(new HashMap<String, String>()));
-        dict.add("foo", new ProbabilityInfo(1), null, false /* isNotAWord */);
-        dict.add("fta", new ProbabilityInfo(1), null, false /* isNotAWord */);
-        dict.add("ftb", new ProbabilityInfo(1), null, false /* isNotAWord */);
-        dict.add("bar", new ProbabilityInfo(1), null, false /* isNotAWord */);
-        dict.add("fool", new ProbabilityInfo(1), null, false /* isNotAWord */);
+        dict.add("foo", new ProbabilityInfo(1), null, false /* isNotAWord */,
+                false /* isPossiblyOffensive */);
+        dict.add("fta", new ProbabilityInfo(1), null, false /* isNotAWord */,
+                false /* isPossiblyOffensive */);
+        dict.add("ftb", new ProbabilityInfo(1), null, false /* isNotAWord */,
+                false /* isPossiblyOffensive */);
+        dict.add("bar", new ProbabilityInfo(1), null, false /* isNotAWord */,
+                false /* isPossiblyOffensive */);
+        dict.add("fool", new ProbabilityInfo(1), null, false /* isNotAWord */,
+                false /* isPossiblyOffensive */);
         final ArrayList<PtNodeArray> result =
                 BinaryDictEncoderUtils.flattenTree(dict.mRootNodeArray);
         assertEquals(4, result.size());
diff --git a/tools/dicttool/tests/com/android/inputmethod/latin/makedict/FusionDictionaryTest.java b/tools/dicttool/tests/com/android/inputmethod/latin/makedict/FusionDictionaryTest.java
index 71f8ac8..86bc20e 100644
--- a/tools/dicttool/tests/com/android/inputmethod/latin/makedict/FusionDictionaryTest.java
+++ b/tools/dicttool/tests/com/android/inputmethod/latin/makedict/FusionDictionaryTest.java
@@ -101,7 +101,8 @@
         prepare(time);
         for (int i = 0; i < sWords.size(); ++i) {
             System.out.println("Adding in pos " + i + " : " + dumpWord(sWords.get(i)));
-            dict.add(sWords.get(i), new ProbabilityInfo(180), null, false);
+            dict.add(sWords.get(i), new ProbabilityInfo(180), null, false,
+                    false /* isPossiblyOffensive */);
             dumpDict(dict);
             checkDictionary(dict, sWords, i);
         }