Index: wp-admin/includes/file.php
===================================================================
--- wp-admin/includes/file.php	(revision 44443)
+++ wp-admin/includes/file.php	(working copy)
@@ -1916,7 +1916,7 @@
 	}
 
 	$title = sprintf(
-		/* translators: %s: user's e-mail address */
+		/* translators: %s: user's email address */
 		__( 'Personal Data Export for %s' ),
 		$email_address
 	);
Index: wp-includes/class-json.php
===================================================================
--- wp-includes/class-json.php	(revision 44443)
+++ wp-includes/class-json.php	(working copy)
@@ -15,11 +15,11 @@
  * ideal data-interchange language.
  *
  * This package provides a simple encoder and decoder for JSON notation. It
- * is intended for use with client-side Javascript applications that make
+ * is intended for use with client-side JavaScript applications that make
  * use of HTTPRequest to perform server communication functions - data can
  * be encoded into JSON notation for use in a client-side javascript, or
- * decoded from incoming Javascript requests. JSON format is native to
- * Javascript, and can be directly eval()'ed with no further parsing
+ * decoded from incoming JavaScript requests. JSON format is native to
+ * JavaScript, and can be directly eval()'ed with no further parsing
  * overhead
  *
  * All strings should be in ASCII or UTF-8 format!
Index: wp-includes/class-snoopy.php
===================================================================
--- wp-includes/class-snoopy.php	(revision 44443)
+++ wp-includes/class-snoopy.php	(working copy)
@@ -27,7 +27,7 @@
  * License along with this library; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
-You may contact the author of Snoopy by e-mail at:
+You may contact the author of Snoopy by email at:
 monte@ohrt.com
 
 The latest version of Snoopy can be obtained from:
Index: wp-includes/class-wp-customize-manager.php
===================================================================
--- wp-includes/class-wp-customize-manager.php	(revision 44443)
+++ wp-includes/class-wp-customize-manager.php	(working copy)
@@ -3583,7 +3583,7 @@
 	 *  @type string       $capability            Capability required for the setting. Default 'edit_theme_options'
 	 *  @type string|array $theme_supports        Theme features required to support the panel. Default is none.
 	 *  @type string       $default               Default value for the setting. Default is empty string.
-	 *  @type string       $transport             Options for rendering the live preview of changes in Theme Customizer.
+	 *  @type string       $transport             Options for rendering the live preview of changes in Customizer.
 	 *                                            Using 'refresh' makes the change visible by reloading the whole preview.
 	 *                                            Using 'postMessage' allows a custom JavaScript to handle live changes.
 	 *                                            @link https://developer.wordpress.org/themes/customize-api
Index: wp-includes/class-wp-customize-setting.php
===================================================================
--- wp-includes/class-wp-customize-setting.php	(revision 44443)
+++ wp-includes/class-wp-customize-setting.php	(working copy)
@@ -66,9 +66,9 @@
 	public $default = '';
 
 	/**
-	 * Options for rendering the live preview of changes in Theme Customizer.
+	 * Options for rendering the live preview of changes in Customizer.
 	 *
-	 * Set this value to 'postMessage' to enable a custom Javascript handler to render changes to this setting
+	 * Set this value to 'postMessage' to enable a custom JavaScript handler to render changes to this setting
 	 * as opposed to reloading the whole page.
 	 *
 	 * @link https://developer.wordpress.org/themes/customize-api
Index: wp-includes/class-wp-site.php
===================================================================
--- wp-includes/class-wp-site.php	(revision 44443)
+++ wp-includes/class-wp-site.php	(working copy)
@@ -316,7 +316,7 @@
 		if ( false === $details ) {
 
 			switch_to_blog( $this->blog_id );
-			// Create a raw copy of the object for backwards compatibility with the filter below.
+			// Create a raw copy of the object for backward compatibility with the filter below.
 			$details = new stdClass();
 			foreach ( get_object_vars( $this ) as $key => $value ) {
 				$details->$key = $value;
Index: wp-includes/media.php
===================================================================
--- wp-includes/media.php	(revision 44443)
+++ wp-includes/media.php	(working copy)
@@ -732,7 +732,7 @@
 			$data = array_shift( $candidates );
 		/*
 		 * When the size requested is smaller than the thumbnail dimensions, we
-		 * fall back to the thumbnail size to maintain backwards compatibility with
+		 * fall back to the thumbnail size to maintain backward compatibility with
 		 * pre 4.6 versions of WordPress.
 		 */
 		} elseif ( ! empty( $imagedata['sizes']['thumbnail'] ) && $imagedata['sizes']['thumbnail']['width'] >= $size[0] && $imagedata['sizes']['thumbnail']['width'] >= $size[1] ) {
Index: wp-includes/script-loader.php
===================================================================
--- wp-includes/script-loader.php	(revision 44443)
+++ wp-includes/script-loader.php	(working copy)
@@ -995,7 +995,7 @@
 	$scripts->add( 'jquery-table-hotkeys', "/wp-includes/js/jquery/jquery.table-hotkeys$suffix.js", array('jquery', 'jquery-hotkeys'), false, 1 );
 	$scripts->add( 'jquery-touch-punch', "/wp-includes/js/jquery/jquery.ui.touch-punch.js", array('jquery-ui-widget', 'jquery-ui-mouse'), '0.2.2', 1 );
 
-	// Not used any more, registered for backwards compatibility.
+	// Not used any more, registered for backward compatibility.
 	$scripts->add( 'suggest', "/wp-includes/js/jquery/suggest$suffix.js", array('jquery'), '1.1-20110113', 1 );
 
 	// Masonry v2 depended on jQuery. v3 does not. The older jquery-masonry handle is a shiv.
Index: wp-includes/SimplePie/Enclosure.php
===================================================================
--- wp-includes/SimplePie/Enclosure.php	(revision 44443)
+++ wp-includes/SimplePie/Enclosure.php	(working copy)
@@ -923,7 +923,7 @@
 	}
 
 	/**
-	 * Embed the enclosure using Javascript
+	 * Embed the enclosure using JavaScript
 	 *
 	 * `$options` is an array or comma-separated key:value string, with the
 	 * following properties:
Index: wp-includes/SimplePie/Registry.php
===================================================================
--- wp-includes/SimplePie/Registry.php	(revision 44443)
+++ wp-includes/SimplePie/Registry.php	(working copy)
@@ -208,7 +208,7 @@
 			switch ($type)
 			{
 				case 'Cache':
-					// For backwards compatibility with old non-static
+					// For backward compatibility with old non-static
 					// Cache::create() methods
 					if ($method === 'get_handler')
 					{
Index: wp-includes/theme.php
===================================================================
--- wp-includes/theme.php	(revision 44443)
+++ wp-includes/theme.php	(working copy)
@@ -3127,7 +3127,7 @@
 		 * it is now a persistent changeset, a long-lived draft, and so any
 		 * associated auto-draft posts should likewise transition into having a draft
 		 * status. These drafts will be treated differently than regular drafts in
-		 * that they will be tied to the given changeset. The publish metabox is
+		 * that they will be tied to the given changeset. The publish meta box is
 		 * replaced with a notice about how the post is part of a set of customized changes
 		 * which will be published when the changeset is published.
 		 */
Index: wp-includes/wp-db.php
===================================================================
--- wp-includes/wp-db.php	(revision 44443)
+++ wp-includes/wp-db.php	(working copy)
@@ -1262,7 +1262,7 @@
 		 * If a %s placeholder already has quotes around it, removing the existing quotes and re-inserting them
 		 * ensures the quotes are consistent.
 		 *
-		 * For backwards compatibility, this is only applied to %s, and not to placeholders like %1$s, which are frequently
+		 * For backward compatibility, this is only applied to %s, and not to placeholders like %1$s, which are frequently
 		 * used in the middle of longer strings, or as table name placeholders.
 		 */
 		$query = str_replace( "'%s'", '%s', $query ); // Strip any existing single quotes.
