diff --git a/libraries/stdlib/common/src/generated/_Arrays.kt b/libraries/stdlib/common/src/generated/_Arrays.kt
index 2aae07f587d..3dd538cd50d 100644
--- a/libraries/stdlib/common/src/generated/_Arrays.kt
+++ b/libraries/stdlib/common/src/generated/_Arrays.kt
@@ -9610,9 +9610,11 @@ public inline fun <K> CharArray.distinctBy(selector: (Char) -> K): List<Char> {
 }
 
 /**
- * Returns a set containing all elements that are contained by both this set and the specified collection.
+ * Returns a set containing all elements that are contained by both this array and the specified collection.
  * 
  * The returned set preserves the element iteration order of the original array.
+ * 
+ * To get a set containing all elements that are contained at least in one of these collections use [union].
  */
 public infix fun <T> Array<out T>.intersect(other: Iterable<T>): Set<T> {
     val set = this.toMutableSet()
@@ -9621,9 +9623,11 @@ public infix fun <T> Array<out T>.intersect(other: Iterable<T>): Set<T> {
 }
 
 /**
- * Returns a set containing all elements that are contained by both this set and the specified collection.
+ * Returns a set containing all elements that are contained by both this array and the specified collection.
  * 
  * The returned set preserves the element iteration order of the original array.
+ * 
+ * To get a set containing all elements that are contained at least in one of these collections use [union].
  */
 public infix fun ByteArray.intersect(other: Iterable<Byte>): Set<Byte> {
     val set = this.toMutableSet()
@@ -9632,9 +9636,11 @@ public infix fun ByteArray.intersect(other: Iterable<Byte>): Set<Byte> {
 }
 
 /**
- * Returns a set containing all elements that are contained by both this set and the specified collection.
+ * Returns a set containing all elements that are contained by both this array and the specified collection.
  * 
  * The returned set preserves the element iteration order of the original array.
+ * 
+ * To get a set containing all elements that are contained at least in one of these collections use [union].
  */
 public infix fun ShortArray.intersect(other: Iterable<Short>): Set<Short> {
     val set = this.toMutableSet()
@@ -9643,9 +9649,11 @@ public infix fun ShortArray.intersect(other: Iterable<Short>): Set<Short> {
 }
 
 /**
- * Returns a set containing all elements that are contained by both this set and the specified collection.
+ * Returns a set containing all elements that are contained by both this array and the specified collection.
  * 
  * The returned set preserves the element iteration order of the original array.
+ * 
+ * To get a set containing all elements that are contained at least in one of these collections use [union].
  */
 public infix fun IntArray.intersect(other: Iterable<Int>): Set<Int> {
     val set = this.toMutableSet()
@@ -9654,9 +9662,11 @@ public infix fun IntArray.intersect(other: Iterable<Int>): Set<Int> {
 }
 
 /**
- * Returns a set containing all elements that are contained by both this set and the specified collection.
+ * Returns a set containing all elements that are contained by both this array and the specified collection.
  * 
  * The returned set preserves the element iteration order of the original array.
+ * 
+ * To get a set containing all elements that are contained at least in one of these collections use [union].
  */
 public infix fun LongArray.intersect(other: Iterable<Long>): Set<Long> {
     val set = this.toMutableSet()
@@ -9665,9 +9675,11 @@ public infix fun LongArray.intersect(other: Iterable<Long>): Set<Long> {
 }
 
 /**
- * Returns a set containing all elements that are contained by both this set and the specified collection.
+ * Returns a set containing all elements that are contained by both this array and the specified collection.
  * 
  * The returned set preserves the element iteration order of the original array.
+ * 
+ * To get a set containing all elements that are contained at least in one of these collections use [union].
  */
 public infix fun FloatArray.intersect(other: Iterable<Float>): Set<Float> {
     val set = this.toMutableSet()
@@ -9676,9 +9688,11 @@ public infix fun FloatArray.intersect(other: Iterable<Float>): Set<Float> {
 }
 
 /**
- * Returns a set containing all elements that are contained by both this set and the specified collection.
+ * Returns a set containing all elements that are contained by both this array and the specified collection.
  * 
  * The returned set preserves the element iteration order of the original array.
+ * 
+ * To get a set containing all elements that are contained at least in one of these collections use [union].
  */
 public infix fun DoubleArray.intersect(other: Iterable<Double>): Set<Double> {
     val set = this.toMutableSet()
@@ -9687,9 +9701,11 @@ public infix fun DoubleArray.intersect(other: Iterable<Double>): Set<Double> {
 }
 
 /**
- * Returns a set containing all elements that are contained by both this set and the specified collection.
+ * Returns a set containing all elements that are contained by both this array and the specified collection.
  * 
  * The returned set preserves the element iteration order of the original array.
+ * 
+ * To get a set containing all elements that are contained at least in one of these collections use [union].
  */
 public infix fun BooleanArray.intersect(other: Iterable<Boolean>): Set<Boolean> {
     val set = this.toMutableSet()
@@ -9698,9 +9714,11 @@ public infix fun BooleanArray.intersect(other: Iterable<Boolean>): Set<Boolean>
 }
 
 /**
- * Returns a set containing all elements that are contained by both this set and the specified collection.
+ * Returns a set containing all elements that are contained by both this array and the specified collection.
  * 
  * The returned set preserves the element iteration order of the original array.
+ * 
+ * To get a set containing all elements that are contained at least in one of these collections use [union].
  */
 public infix fun CharArray.intersect(other: Iterable<Char>): Set<Char> {
     val set = this.toMutableSet()
@@ -9912,6 +9930,8 @@ public fun CharArray.toMutableSet(): MutableSet<Char> {
  * The returned set preserves the element iteration order of the original array.
  * Those elements of the [other] collection that are unique are iterated in the end
  * in the order of the [other] collection.
+ * 
+ * To get a set containing all elements that are contained in both collections use [intersect].
  */
 public infix fun <T> Array<out T>.union(other: Iterable<T>): Set<T> {
     val set = this.toMutableSet()
@@ -9925,6 +9945,8 @@ public infix fun <T> Array<out T>.union(other: Iterable<T>): Set<T> {
  * The returned set preserves the element iteration order of the original array.
  * Those elements of the [other] collection that are unique are iterated in the end
  * in the order of the [other] collection.
+ * 
+ * To get a set containing all elements that are contained in both collections use [intersect].
  */
 public infix fun ByteArray.union(other: Iterable<Byte>): Set<Byte> {
     val set = this.toMutableSet()
@@ -9938,6 +9960,8 @@ public infix fun ByteArray.union(other: Iterable<Byte>): Set<Byte> {
  * The returned set preserves the element iteration order of the original array.
  * Those elements of the [other] collection that are unique are iterated in the end
  * in the order of the [other] collection.
+ * 
+ * To get a set containing all elements that are contained in both collections use [intersect].
  */
 public infix fun ShortArray.union(other: Iterable<Short>): Set<Short> {
     val set = this.toMutableSet()
@@ -9951,6 +9975,8 @@ public infix fun ShortArray.union(other: Iterable<Short>): Set<Short> {
  * The returned set preserves the element iteration order of the original array.
  * Those elements of the [other] collection that are unique are iterated in the end
  * in the order of the [other] collection.
+ * 
+ * To get a set containing all elements that are contained in both collections use [intersect].
  */
 public infix fun IntArray.union(other: Iterable<Int>): Set<Int> {
     val set = this.toMutableSet()
@@ -9964,6 +9990,8 @@ public infix fun IntArray.union(other: Iterable<Int>): Set<Int> {
  * The returned set preserves the element iteration order of the original array.
  * Those elements of the [other] collection that are unique are iterated in the end
  * in the order of the [other] collection.
+ * 
+ * To get a set containing all elements that are contained in both collections use [intersect].
  */
 public infix fun LongArray.union(other: Iterable<Long>): Set<Long> {
     val set = this.toMutableSet()
@@ -9977,6 +10005,8 @@ public infix fun LongArray.union(other: Iterable<Long>): Set<Long> {
  * The returned set preserves the element iteration order of the original array.
  * Those elements of the [other] collection that are unique are iterated in the end
  * in the order of the [other] collection.
+ * 
+ * To get a set containing all elements that are contained in both collections use [intersect].
  */
 public infix fun FloatArray.union(other: Iterable<Float>): Set<Float> {
     val set = this.toMutableSet()
@@ -9990,6 +10020,8 @@ public infix fun FloatArray.union(other: Iterable<Float>): Set<Float> {
  * The returned set preserves the element iteration order of the original array.
  * Those elements of the [other] collection that are unique are iterated in the end
  * in the order of the [other] collection.
+ * 
+ * To get a set containing all elements that are contained in both collections use [intersect].
  */
 public infix fun DoubleArray.union(other: Iterable<Double>): Set<Double> {
     val set = this.toMutableSet()
@@ -10003,6 +10035,8 @@ public infix fun DoubleArray.union(other: Iterable<Double>): Set<Double> {
  * The returned set preserves the element iteration order of the original array.
  * Those elements of the [other] collection that are unique are iterated in the end
  * in the order of the [other] collection.
+ * 
+ * To get a set containing all elements that are contained in both collections use [intersect].
  */
 public infix fun BooleanArray.union(other: Iterable<Boolean>): Set<Boolean> {
     val set = this.toMutableSet()
@@ -10016,6 +10050,8 @@ public infix fun BooleanArray.union(other: Iterable<Boolean>): Set<Boolean> {
  * The returned set preserves the element iteration order of the original array.
  * Those elements of the [other] collection that are unique are iterated in the end
  * in the order of the [other] collection.
+ * 
+ * To get a set containing all elements that are contained in both collections use [intersect].
  */
 public infix fun CharArray.union(other: Iterable<Char>): Set<Char> {
     val set = this.toMutableSet()
diff --git a/libraries/stdlib/common/src/generated/_Collections.kt b/libraries/stdlib/common/src/generated/_Collections.kt
index a555bd6637a..2add9a8b594 100644
--- a/libraries/stdlib/common/src/generated/_Collections.kt
+++ b/libraries/stdlib/common/src/generated/_Collections.kt
@@ -1419,9 +1419,11 @@ public inline fun <T, K> Iterable<T>.distinctBy(selector: (T) -> K): List<T> {
 }
 
 /**
- * Returns a set containing all elements that are contained by both this set and the specified collection.
+ * Returns a set containing all elements that are contained by both this collection and the specified collection.
  * 
  * The returned set preserves the element iteration order of the original collection.
+ * 
+ * To get a set containing all elements that are contained at least in one of these collections use [union].
  */
 public infix fun <T> Iterable<T>.intersect(other: Iterable<T>): Set<T> {
     val set = this.toMutableSet()
@@ -1458,6 +1460,8 @@ public fun <T> Iterable<T>.toMutableSet(): MutableSet<T> {
  * The returned set preserves the element iteration order of the original collection.
  * Those elements of the [other] collection that are unique are iterated in the end
  * in the order of the [other] collection.
+ * 
+ * To get a set containing all elements that are contained in both collections use [intersect].
  */
 public infix fun <T> Iterable<T>.union(other: Iterable<T>): Set<T> {
     val set = this.toMutableSet()
diff --git a/libraries/tools/kotlin-stdlib-gen/src/templates/Sets.kt b/libraries/tools/kotlin-stdlib-gen/src/templates/Sets.kt
index 07cc4a251b2..82d0b03f072 100644
--- a/libraries/tools/kotlin-stdlib-gen/src/templates/Sets.kt
+++ b/libraries/tools/kotlin-stdlib-gen/src/templates/Sets.kt
@@ -113,6 +113,8 @@ object SetOps : TemplateGroupBase() {
             The returned set preserves the element iteration order of the original ${f.collection}.
             Those elements of the [other] collection that are unique are iterated in the end
             in the order of the [other] collection.
+            
+            To get a set containing all elements that are contained in both collections use [intersect].
             """
         }
         returns("Set<T>")
@@ -131,9 +133,11 @@ object SetOps : TemplateGroupBase() {
         infix()
         doc {
             """
-            Returns a set containing all elements that are contained by both this set and the specified collection.
+            Returns a set containing all elements that are contained by both this ${f.collection} and the specified collection.
 
             The returned set preserves the element iteration order of the original ${f.collection}.
+            
+            To get a set containing all elements that are contained at least in one of these collections use [union].
             """
         }
         returns("Set<T>")