diff --git a/README.md b/README.md
index 127c52c..18c6604 100644
--- a/README.md
+++ b/README.md
@@ -188,7 +188,7 @@
 
 #### Namespaces
 
-A presense of the `soong_namespace {..}` in an Android.bp file defines a
+The presence of the `soong_namespace {..}` in an Android.bp file defines a
 **namespace**. For instance, having
 
 ```
diff --git a/android/mutator.go b/android/mutator.go
index fa6f2be8..739e4ee 100644
--- a/android/mutator.go
+++ b/android/mutator.go
@@ -323,13 +323,13 @@
 	// AddVariationDependencies adds deps as dependencies of the current module, but uses the variations
 	// argument to select which variant of the dependency to use.  It returns a slice of modules for
 	// each dependency (some entries may be nil).  A variant of the dependency must exist that matches
-	// the all of the non-local variations of the current module, plus the variations argument.
+	// all the non-local variations of the current module, plus the variations argument.
 	//
 	// If the mutator is parallel (see MutatorHandle.Parallel), this method will pause until the
 	// new dependencies have had the current mutator called on them.  If the mutator is not
 	// parallel this method does not affect the ordering of the current mutator pass, but will
 	// be ordered correctly for all future mutator passes.
-	AddVariationDependencies([]blueprint.Variation, blueprint.DependencyTag, ...string) []blueprint.Module
+	AddVariationDependencies(variations []blueprint.Variation, tag blueprint.DependencyTag, names ...string) []blueprint.Module
 
 	// AddFarVariationDependencies adds deps as dependencies of the current module, but uses the
 	// variations argument to select which variant of the dependency to use.  It returns a slice of
diff --git a/android/namespace.go b/android/namespace.go
index 4f727e1..fc7bc29 100644
--- a/android/namespace.go
+++ b/android/namespace.go
@@ -74,7 +74,7 @@
 
 // A NameResolver implements blueprint.NameInterface, and implements the logic to
 // find a module from namespaces based on a query string.
-// A query string can be a module name or can be be "//namespace_path:module_path"
+// A query string can be a module name or can be "//namespace_path:module_path"
 type NameResolver struct {
 	rootNamespace *Namespace
 
diff --git a/android/register.go b/android/register.go
index 1ac4440..10e14e0 100644
--- a/android/register.go
+++ b/android/register.go
@@ -31,7 +31,7 @@
 type sortableComponent interface {
 	// componentName returns the name of the component.
 	//
-	// Uniquely identifies the components within the set of components used at runtimr and during
+	// Uniquely identifies the components within the set of components used at runtime and during
 	// tests.
 	componentName() string
 
diff --git a/android/variable.go b/android/variable.go
index 40dd2d8..ff77fef 100644
--- a/android/variable.go
+++ b/android/variable.go
@@ -129,7 +129,7 @@
 			Exclude_srcs []string
 		}
 
-		// eng is true for -eng builds, and can be used to turn on additionaly heavyweight debugging
+		// eng is true for -eng builds, and can be used to turn on additional heavyweight debugging
 		// features.
 		Eng struct {
 			Cflags   []string