diff --git a/wp-admin/includes/class-wp-press-this.php b/wp-admin/includes/class-wp-press-this.php
index 7fd536c7bf..0288ed0520 100644
--- a/wp-admin/includes/class-wp-press-this.php
+++ b/wp-admin/includes/class-wp-press-this.php
@@ -379,7 +379,7 @@ class WP_Press_This {
 			return ''; // Return empty rather than a truncated/invalid URL
 		}
 
-		// Does not look like an URL.
+		// Does not look like a URL.
 		if ( ! preg_match( '/^([!#$&-;=?-\[\]_a-z~]|%[0-9a-fA-F]{2})+$/', $url ) ) {
 			return '';
 		}
diff --git a/wp-admin/includes/file.php b/wp-admin/includes/file.php
index cb85c05eca..72f5e2209b 100644
--- a/wp-admin/includes/file.php
+++ b/wp-admin/includes/file.php
@@ -469,7 +469,7 @@ function wp_handle_sideload( &$file, $overrides = false, $time = null ) {
 
 
 /**
- * Downloads a url to a local temporary file using the WordPress HTTP Class.
+ * Downloads a URL to a local temporary file using the WordPress HTTP Class.
  * Please note, That the calling function must unlink() the file.
  *
  * @since 2.5.0
diff --git a/wp-admin/includes/image.php b/wp-admin/includes/image.php
index aeed988ae6..f0cb0e960e 100644
--- a/wp-admin/includes/image.php
+++ b/wp-admin/includes/image.php
@@ -28,7 +28,7 @@ function wp_crop_image( $src, $src_x, $src_y, $src_w, $src_h, $dst_w, $dst_h, $s
 		$src_file = get_attached_file( $src );
 
 		if ( ! file_exists( $src_file ) ) {
-			// If the file doesn't exist, attempt a url fopen on the src link.
+			// If the file doesn't exist, attempt a URL fopen on the src link.
 			// This can occur with certain file replication plugins.
 			$src = _load_image_to_edit_path( $src, 'full' );
 		} else {
diff --git a/wp-admin/menu-header.php b/wp-admin/menu-header.php
index db4123c09f..516ebd3c8d 100644
--- a/wp-admin/menu-header.php
+++ b/wp-admin/menu-header.php
@@ -109,7 +109,7 @@ function _wp_menu_output( $menu, $submenu, $submenu_as_parent = true ) {
 		}
 
 		/*
-		 * If the string 'none' (previously 'div') is passed instead of an URL, don't output
+		 * If the string 'none' (previously 'div') is passed instead of a URL, don't output
 		 * the default menu image so an icon can be added to div.wp-menu-image as background
 		 * with CSS. Dashicons and base64-encoded data:image/svg_xml URIs are also handled
 		 * as special cases.
diff --git a/wp-includes/class-wp-embed.php b/wp-includes/class-wp-embed.php
index 730fc4fc91..40eecfbba3 100644
--- a/wp-includes/class-wp-embed.php
+++ b/wp-includes/class-wp-embed.php
@@ -15,7 +15,7 @@ class WP_Embed {
 	public $last_url = '';
 
 	/**
-	 * When an URL cannot be embedded, return false instead of returning a link
+	 * When a URL cannot be embedded, return false instead of returning a link
 	 * or the URL. Bypasses the 'embed_maybe_make_link' filter.
 	 */
 	public $return_false_on_fail = false;
diff --git a/wp-includes/class-wp-http-curl.php b/wp-includes/class-wp-http-curl.php
index 5741f845a0..a161677ccc 100644
--- a/wp-includes/class-wp-http-curl.php
+++ b/wp-includes/class-wp-http-curl.php
@@ -351,7 +351,7 @@ class WP_Http_Curl {
 	}
 
 	/**
-	 * Determines whether this class can be used for retrieving an URL.
+	 * Determines whether this class can be used for retrieving a URL.
 	 *
 	 * @static
 	 * @since 2.7.0
diff --git a/wp-includes/comment.php b/wp-includes/comment.php
index 55aca867a3..92354d6f17 100644
--- a/wp-includes/comment.php
+++ b/wp-includes/comment.php
@@ -2203,7 +2203,7 @@ function discover_pingback_server_uri( $url, $deprecated = '' ) {
 	/** @todo Should use Filter Extension or custom preg_match instead. */
 	$parsed_url = parse_url($url);
 
-	if ( ! isset( $parsed_url['host'] ) ) // Not an URL. This should never happen.
+	if ( ! isset( $parsed_url['host'] ) ) // Not a URL. This should never happen.
 		return false;
 
 	//Do not search for a pingback server on our own uploads
diff --git a/wp-includes/formatting.php b/wp-includes/formatting.php
index b7060af959..ba196d9ced 100644
--- a/wp-includes/formatting.php
+++ b/wp-includes/formatting.php
@@ -4785,7 +4785,7 @@ function wp_staticize_emoji_for_email( $mail ) {
 }
 
 /**
- * Shorten an URL, to be used as link text.
+ * Shorten a URL, to be used as link text.
  *
  * @since 1.2.0
  * @since 4.4.0 Moved to wp-includes/formatting.php from wp-admin/includes/misc.php and added $length param.
diff --git a/wp-includes/rewrite.php b/wp-includes/rewrite.php
index 8be50f721b..0763dc500e 100644
--- a/wp-includes/rewrite.php
+++ b/wp-includes/rewrite.php
@@ -447,7 +447,7 @@ function wp_resolve_numeric_slug_conflicts( $query_vars = array() ) {
 }
 
 /**
- * Examine a url and try to determine the post ID it represents.
+ * Examine a URL and try to determine the post ID it represents.
  *
  * Checks are supposedly from the hosted site blog.
  *
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 901f52fd1d..a05ab95e4e 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.5-beta3-36969';
+$wp_version = '4.5-beta3-36970';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.