Index: wp-admin/includes/template.php
===================================================================
--- wp-admin/includes/template.php	(revision 40958)
+++ wp-admin/includes/template.php	(working copy)
@@ -1572,7 +1572,7 @@
 function _draft_or_post_title( $post = 0 ) {
 	$title = get_the_title( $post );
 	if ( empty( $title ) )
-		$title = __( '(no title)' );
+		$title = __( 'untitled' );
 	return esc_html( $title );
 }
 
Index: wp-includes/class-walker-page-dropdown.php
===================================================================
--- wp-includes/class-walker-page-dropdown.php	(revision 40958)
+++ wp-includes/class-walker-page-dropdown.php	(working copy)
@@ -71,7 +71,7 @@
 		$title = $page->post_title;
 		if ( '' === $title ) {
 			/* translators: %d: ID of a post */
-			$title = sprintf( __( '#%d (no title)' ), $page->ID );
+			$title = sprintf( __( 'untitled' ), $page->ID ); 
 		}
 
 		/**
Index: wp-includes/class-walker-page.php
===================================================================
--- wp-includes/class-walker-page.php	(revision 40958)
+++ wp-includes/class-walker-page.php	(working copy)
@@ -154,7 +154,7 @@
 
 		if ( '' === $page->post_title ) {
 			/* translators: %d: ID of a post */
-			$page->post_title = sprintf( __( '#%d (no title)' ), $page->ID );
+			$page->post_title = sprintf(__('untitled'), $page->ID);
 		}
 
 		$args['link_before'] = empty( $args['link_before'] ) ? '' : $args['link_before'];
Index: wp-includes/class-wp-customize-nav-menus.php
===================================================================
--- wp-includes/class-wp-customize-nav-menus.php	(revision 40958)
+++ wp-includes/class-wp-customize-nav-menus.php	(working copy)
@@ -197,7 +197,7 @@
 				$post_title = $post->post_title;
 				if ( '' === $post_title ) {
 					/* translators: %d: ID of a post */
-					$post_title = sprintf( __( '#%d (no title)' ), $post->ID );
+					$post_title = sprintf( __( 'untitled' ), $post->ID ); 
 				}
 				$items[] = array(
 					'id'         => "post-{$post->ID}",
Index: wp-includes/customize/class-wp-customize-nav-menu-item-setting.php
===================================================================
--- wp-includes/customize/class-wp-customize-nav-menu-item-setting.php	(revision 40958)
+++ wp-includes/customize/class-wp-customize-nav-menu-item-setting.php	(working copy)
@@ -289,7 +289,7 @@
 
 				if ( '' === $original_title ) {
 					/* translators: %d: ID of a post */
-					$original_title = sprintf( __( '#%d (no title)' ), $original_object->ID );
+					$original_title = sprintf( __( 'untitled' ), $original_object->ID );
 				}
 			}
 		} elseif ( 'taxonomy' === $item->type && ! empty( $item->object_id ) ) {
Index: wp-includes/nav-menu.php
===================================================================
--- wp-includes/nav-menu.php	(revision 40958)
+++ wp-includes/nav-menu.php	(working copy)
@@ -749,7 +749,7 @@
 
 				if ( '' === $original_title ) {
 					/* translators: %d: ID of a post */
-					$original_title = sprintf( __( '#%d (no title)' ), $original_object->ID );
+					$original_title = sprintf( __( 'untitled' ), $original_object->ID );
 				}
 
 				$menu_item->title = '' == $menu_item->post_title ? $original_title : $menu_item->post_title;
@@ -827,7 +827,7 @@
 
 			if ( '' === $menu_item->post_title ) {
 				/* translators: %d: ID of a post */
-				$menu_item->post_title = sprintf( __( '#%d (no title)' ), $menu_item->ID );
+				$menu_item->post_title = sprintf( __( 'untitled' ), $menu_item->ID );
 			}
 
 			$menu_item->title = $menu_item->post_title;