diff --git a/runtime/doc/builtin.txt b/runtime/doc/builtin.txt
index dd68006..beb7ac7 100644
--- a/runtime/doc/builtin.txt
+++ b/runtime/doc/builtin.txt
@@ -484,7 +484,8 @@
 repeat({expr}, {count})		List/Blob/String
 					repeat {expr} {count} times
 resolve({filename})		String	get filename a shortcut points to
-reverse({list})			List	reverse {list} in-place
+reverse({obj})			List/Blob/String
+					reverse {obj}
 round({expr})			Float	round off {expr}
 rubyeval({expr})		any	evaluate |Ruby| expression
 screenattr({row}, {col})	Number	attribute at screen position
@@ -7404,11 +7405,13 @@
 			GetName()->resolve()
 
 reverse({object})					*reverse()*
-		Reverse the order of items in {object} in-place.
-		{object} can be a |List| or a |Blob|.
-		Returns {object}.
-		Returns zero if {object} is not a List or a Blob.
-		If you want an object to remain unmodified make a copy first: >
+		Reverse the order of items in {object}.  {object} can be a
+		|List|, a |Blob| or a |String|.  For a List and a Blob the
+		items are reversed in-place and {object} is returned.
+		For a String a new String is returned.
+		Returns zero if {object} is not a List, Blob or a String.
+		If you want a List or Blob to remain unmodified make a copy
+		first: >
 			:let revlist = reverse(copy(mylist))
 <		Can also be used as a |method|: >
 			mylist->reverse()
diff --git a/runtime/doc/usr_41.txt b/runtime/doc/usr_41.txt
index bc6d8b4..4e194d3 100644
--- a/runtime/doc/usr_41.txt
+++ b/runtime/doc/usr_41.txt
@@ -759,6 +759,7 @@
 	strdisplaywidth()	size of string when displayed, deals with tabs
 	setcellwidths()		set character cell width overrides
 	getcellwidths()		get character cell width overrides
+	reverse()		reverse the order of characters in a string
 	substitute()		substitute a pattern match with a string
 	submatch()		get a specific match in ":s" and substitute()
 	strpart()		get part of a string using byte index
@@ -797,7 +798,7 @@
 	reduce()		reduce a List to a value
 	slice()			take a slice of a List
 	sort()			sort a List
-	reverse()		reverse the order of a List or Blob
+	reverse()		reverse the order of items in a List
 	uniq()			remove copies of repeated adjacent items
 	split()			split a String into a List
 	join()			join List items into a String
@@ -864,6 +865,7 @@
 Blob manipulation:					*blob-functions*
 	blob2list()		get a list of numbers from a blob
 	list2blob()		get a blob from a list of numbers
+	reverse()		reverse the order of numbers in a blob
 
 Other computation:					*bitwise-function*
 	and()			bitwise AND