Index: includes/menu.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/menu.inc,v
retrieving revision 1.431
diff -u -r1.431 menu.inc
--- includes/menu.inc	4 Jan 2011 06:20:30 -0000	1.431
+++ includes/menu.inc	9 Feb 2011 23:52:01 -0000
@@ -14,7 +14,10 @@
  * The Drupal menu system drives both the navigation system from a user
  * perspective and the callback system that Drupal uses to respond to URLs
  * passed from the browser. For this reason, a good understanding of the
- * menu system is fundamental to the creation of complex modules.
+ * menu system is fundamental to the creation of complex modules. As a note,
+ * this is related to, but separate from menu.module, which allows menus
+ * (which in this context are hierarchical lists of links) to be customized from
+ * the Drupal administrative interface.
  *
  * Drupal's menu system follows a simple hierarchy defined by paths.
  * Implementations of hook_menu() define menu items and assign them to
Index: modules/menu/menu.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/menu/menu.module,v
retrieving revision 1.233
diff -u -r1.233 menu.module
--- modules/menu/menu.module	24 Sep 2010 00:37:43 -0000	1.233
+++ modules/menu/menu.module	9 Feb 2011 23:52:01 -0000
@@ -3,7 +3,13 @@
 
 /**
  * @file
- * Allows administrators to customize the site navigation menu.
+ * Allows administrators to customize the site's navigation menus.
+ *
+ * A menu (in this context) is a hierarchical collection of links, generally
+ * used for navigation. This is not to be confused with the
+ * @link menu Menu system @endlink of menu.inc and hook_menu(), which defines
+ * page routing requests for Drupal, and also allows the defined page routing
+ * URLs to be added to the main site navigation menu.
  */
 
 /**