diff --git a/administrator/components/com_users/src/Model/UsersModel.php b/administrator/components/com_users/src/Model/UsersModel.php
index c3695de7b5ddf..657ccdfba653c 100644
--- a/administrator/components/com_users/src/Model/UsersModel.php
+++ b/administrator/components/com_users/src/Model/UsersModel.php
@@ -235,7 +235,7 @@ public function getItems()
                 return false;
             }
 
-            // Second pass: collect the group counts into the master items array.
+            // Second pass: collect the group counts into the main items array.
             foreach ($items as &$item) {
                 if (isset($userGroups[$item->id])) {
                     $item->group_count = $userGroups[$item->id]->group_count;
diff --git a/build/media_source/templates/site/cassiopeia/scss/tools/variables/_variables.scss b/build/media_source/templates/site/cassiopeia/scss/tools/variables/_variables.scss
index 8c0c82f1c7b93..8dc871a3f6340 100644
--- a/build/media_source/templates/site/cassiopeia/scss/tools/variables/_variables.scss
+++ b/build/media_source/templates/site/cassiopeia/scss/tools/variables/_variables.scss
@@ -204,7 +204,7 @@ $form-select-multiple-padding-y:    .3rem !default;
 
 $form-range-thumb-active-bg:        tint-color($standard-color-primary, 70%) !default;
 
-// Z-index master list
+// Z-index source list
 $zindex-negative:                     -1 !default;
 $zindex-actions:                      auto !default;
 $zindex-toolbar:                      1000 !default;
diff --git a/components/com_content/src/Model/ArchiveModel.php b/components/com_content/src/Model/ArchiveModel.php
index 3920d073d189e..66df84c761dd0 100644
--- a/components/com_content/src/Model/ArchiveModel.php
+++ b/components/com_content/src/Model/ArchiveModel.php
@@ -82,7 +82,7 @@ protected function populateState($ordering = null, $direction = null)
     }
 
     /**
-     * Get the master query for retrieving a list of articles subject to the model state.
+     * Get the main query for retrieving a list of articles subject to the model state.
      *
      * @return  \Joomla\Database\DatabaseQuery
      *
diff --git a/plugins/extension/joomla/src/Extension/Joomla.php b/plugins/extension/joomla/src/Extension/Joomla.php
index 814b1f408a1d8..7595150646f4c 100644
--- a/plugins/extension/joomla/src/Extension/Joomla.php
+++ b/plugins/extension/joomla/src/Extension/Joomla.php
@@ -21,7 +21,7 @@
 // phpcs:enable PSR1.Files.SideEffects
 
 /**
- * Joomla! master extension plugin.
+ * Joomla! main extension plugin.
  *
  * @since  1.6
  */