diff --git a/core/builtins/src/kotlin/Function.kt b/core/builtins/src/kotlin/Function.kt
index 3234657a686..660d32a454d 100644
--- a/core/builtins/src/kotlin/Function.kt
+++ b/core/builtins/src/kotlin/Function.kt
@@ -17,7 +17,7 @@
 package kotlin
 
 /**
- * Represents a value of a functional type, such as a lambda, a function expression or a function reference.
+ * Represents a value of a functional type, such as a lambda, an anonymous function or a function reference.
  *
  * @param R return type of the function.
  */
diff --git a/generators/src/org/jetbrains/kotlin/generators/builtins/primitives.kt b/generators/src/org/jetbrains/kotlin/generators/builtins/primitives.kt
index 68cf82f3413..42e22e415e7 100644
--- a/generators/src/org/jetbrains/kotlin/generators/builtins/primitives.kt
+++ b/generators/src/org/jetbrains/kotlin/generators/builtins/primitives.kt
@@ -214,7 +214,7 @@ class GeneratePrimitives(out: PrintWriter) : BuiltInsSourceGenerator(out) {
             since?.let { out.println("    @SinceKotlin(\"$it\")") }
             out.println("    public infix fun $name(other: $className): $className")
         }
-        out.println("    /** Inverts the bits in this value/ */")
+        out.println("    /** Inverts the bits in this value. */")
         since?.let { out.println("    @SinceKotlin(\"$it\")") }
         out.println("    public fun inv(): $className")
         out.println()
diff --git a/libraries/stdlib/src/kotlin/text/regex/MatchResult.kt b/libraries/stdlib/src/kotlin/text/regex/MatchResult.kt
index 94444521742..e83dce5c074 100644
--- a/libraries/stdlib/src/kotlin/text/regex/MatchResult.kt
+++ b/libraries/stdlib/src/kotlin/text/regex/MatchResult.kt
@@ -24,7 +24,7 @@ package kotlin.text
  *
  * An element of the collection at the particular index can be `null`,
  * if the corresponding group in the regular expression is optional and
- * there was not match captured by that group.
+ * there was no match captured by that group.
  */
 public interface MatchGroupCollection : Collection<MatchGroup?> {