diff --git a/js/common/view/NumberPlayScreenView.ts b/js/common/view/NumberPlayScreenView.ts
index 64998b0e..ff9c158c 100644
--- a/js/common/view/NumberPlayScreenView.ts
+++ b/js/common/view/NumberPlayScreenView.ts
@@ -140,7 +140,7 @@ class NumberPlayScreenView extends ScreenView {
         localeSwitch.top = wordAccordionBox.top + wordAccordionBoxHeight + 13;
       } );
 
-    // create and add the CountingAccordionBox for play objects
+    // create and add the CountingAccordionBox for countingObjects
     this.objectsAccordionBox = new CountingAccordionBox(
       model.objectsPlayArea,
       model.countingObjectTypeProperty,
@@ -216,7 +216,7 @@ class NumberPlayScreenView extends ScreenView {
     organizeOnesButton.top = onesAccordionBox.top;
     this.addChild( organizeOnesButton );
 
-    // create and add a button to organize the objectsAccordionBox play objects in a grid
+    // create and add a button to organize the objectsAccordionBox countingObjects in a grid
     const organizeObjectsButton = new OrganizeButton( NumberPlayColors.blueBackgroundColorProperty, () => {
       if ( model.objectsGroupAndLinkTypeProperty.value === GroupAndLinkType.GROUPED_AND_LINKED ) {
         model.onesPlayArea.organizeObjects();
diff --git a/js/game/model/SubitizeObjectType.ts b/js/game/model/SubitizeObjectType.ts
index b1a402cf..7899e6ec 100644
--- a/js/game/model/SubitizeObjectType.ts
+++ b/js/game/model/SubitizeObjectType.ts
@@ -1,7 +1,7 @@
 // Copyright 2021-2022, University of Colorado Boulder
 
 /**
- * SubitizeObjectType identifies the play object type in the 'Subitize' game in Number Play.
+ * SubitizeObjectType identifies the countingObject type in the 'Subitize' game in Number Play.
  *
  * @author Chris Klusendorf (PhET Interactive Simulations)
  * @author Luisa Vargas
diff --git a/js/game/model/Subitizer.ts b/js/game/model/Subitizer.ts
index d3dd481e..92c6ff67 100644
--- a/js/game/model/Subitizer.ts
+++ b/js/game/model/Subitizer.ts
@@ -265,7 +265,7 @@ class Subitizer {
     this.isInputEnabledProperty.value = false;
     this.resetShapeVisible();
 
-    // set play object type and shape
+    // set countingObject type and shape
     this.setRandomCountingObjectType();
     this.setNewPoints();