diff --git a/wp-admin/includes/ajax-actions.php b/wp-admin/includes/ajax-actions.php
index f69892ba7e..4f082b641e 100644
--- a/wp-admin/includes/ajax-actions.php
+++ b/wp-admin/includes/ajax-actions.php
@@ -108,54 +108,54 @@ function wp_ajax_ajax_tag_search() {
 		wp_die( 0 );
 	}
 
-	$taxonomy = sanitize_key( $_GET['tax'] );
-	$tax      = get_taxonomy( $taxonomy );
+	$taxonomy        = sanitize_key( $_GET['tax'] );
+	$taxonomy_object = get_taxonomy( $taxonomy );
 
-	if ( ! $tax ) {
+	if ( ! $taxonomy_object ) {
 		wp_die( 0 );
 	}
 
-	if ( ! current_user_can( $tax->cap->assign_terms ) ) {
+	if ( ! current_user_can( $taxonomy_object->cap->assign_terms ) ) {
 		wp_die( -1 );
 	}
 
-	$s = wp_unslash( $_GET['q'] );
+	$search = wp_unslash( $_GET['q'] );
 
 	$comma = _x( ',', 'tag delimiter' );
 	if ( ',' !== $comma ) {
-		$s = str_replace( $comma, ',', $s );
+		$search = str_replace( $comma, ',', $search );
 	}
 
-	if ( false !== strpos( $s, ',' ) ) {
-		$s = explode( ',', $s );
-		$s = $s[ count( $s ) - 1 ];
+	if ( false !== strpos( $search, ',' ) ) {
+		$search = explode( ',', $search );
+		$search = $search[ count( $search ) - 1 ];
 	}
 
-	$s = trim( $s );
+	$search = trim( $search );
 
 	/**
 	 * Filters the minimum number of characters required to fire a tag search via Ajax.
 	 *
 	 * @since 4.0.0
 	 *
-	 * @param int         $characters The minimum number of characters required. Default 2.
-	 * @param WP_Taxonomy $tax        The taxonomy object.
-	 * @param string      $s          The search term.
+	 * @param int         $characters      The minimum number of characters required. Default 2.
+	 * @param WP_Taxonomy $taxonomy_object The taxonomy object.
+	 * @param string      $search          The search term.
 	 */
-	$term_search_min_chars = (int) apply_filters( 'term_search_min_chars', 2, $tax, $s );
+	$term_search_min_chars = (int) apply_filters( 'term_search_min_chars', 2, $taxonomy_object, $search );
 
 	/*
 	 * Require $term_search_min_chars chars for matching (default: 2)
 	 * ensure it's a non-negative, non-zero integer.
 	 */
-	if ( ( 0 == $term_search_min_chars ) || ( strlen( $s ) < $term_search_min_chars ) ) {
+	if ( ( 0 == $term_search_min_chars ) || ( strlen( $search ) < $term_search_min_chars ) ) {
 		wp_die();
 	}
 
 	$results = get_terms(
 		array(
 			'taxonomy'   => $taxonomy,
-			'name__like' => $s,
+			'name__like' => $search,
 			'fields'     => 'names',
 			'hide_empty' => false,
 			'number'     => isset( $_GET['number'] ) ? (int) $_GET['number'] : 0,
@@ -167,11 +167,11 @@ function wp_ajax_ajax_tag_search() {
 	 *
 	 * @since 6.1.0
 	 *
-	 * @param string[]    $results Array of term names.
-	 * @param WP_Taxonomy $tax     The taxonomy object.
-	 * @param string      $s       The search term.
+	 * @param string[]    $results         Array of term names.
+	 * @param WP_Taxonomy $taxonomy_object The taxonomy object.
+	 * @param string      $search          The search term.
 	 */
-	$results = apply_filters( 'ajax_term_search_results', $results, $tax, $s );
+	$results = apply_filters( 'ajax_term_search_results', $results, $taxonomy_object, $search );
 
 	echo implode( "\n", $results );
 	wp_die();
@@ -1021,9 +1021,10 @@ function wp_ajax_add_link_category( $action ) {
 	}
 
 	check_ajax_referer( $action );
-	$tax = get_taxonomy( 'link_category' );
 
-	if ( ! current_user_can( $tax->cap->manage_terms ) ) {
+	$taxonomy_object = get_taxonomy( 'link_category' );
+
+	if ( ! current_user_can( $taxonomy_object->cap->manage_terms ) ) {
 		wp_die( -1 );
 	}
 
@@ -1067,10 +1068,11 @@ function wp_ajax_add_link_category( $action ) {
  */
 function wp_ajax_add_tag() {
 	check_ajax_referer( 'add-tag', '_wpnonce_add-tag' );
-	$taxonomy = ! empty( $_POST['taxonomy'] ) ? $_POST['taxonomy'] : 'post_tag';
-	$tax      = get_taxonomy( $taxonomy );
 
-	if ( ! current_user_can( $tax->cap->edit_terms ) ) {
+	$taxonomy        = ! empty( $_POST['taxonomy'] ) ? $_POST['taxonomy'] : 'post_tag';
+	$taxonomy_object = get_taxonomy( $taxonomy );
+
+	if ( ! current_user_can( $taxonomy_object->cap->edit_terms ) ) {
 		wp_die( -1 );
 	}
 
@@ -1122,8 +1124,8 @@ function wp_ajax_add_tag() {
 	require ABSPATH . 'wp-admin/includes/edit-tag-messages.php';
 
 	$message = '';
-	if ( isset( $messages[ $tax->name ][1] ) ) {
-		$message = $messages[ $tax->name ][1];
+	if ( isset( $messages[ $taxonomy_object->name ][1] ) ) {
+		$message = $messages[ $taxonomy_object->name ][1];
 	} elseif ( isset( $messages['_item'][1] ) ) {
 		$message = $messages['_item'][1];
 	}
@@ -1161,14 +1163,14 @@ function wp_ajax_get_tagcloud() {
 		wp_die( 0 );
 	}
 
-	$taxonomy = sanitize_key( $_POST['tax'] );
-	$tax      = get_taxonomy( $taxonomy );
+	$taxonomy        = sanitize_key( $_POST['tax'] );
+	$taxonomy_object = get_taxonomy( $taxonomy );
 
-	if ( ! $tax ) {
+	if ( ! $taxonomy_object ) {
 		wp_die( 0 );
 	}
 
-	if ( ! current_user_can( $tax->cap->assign_terms ) ) {
+	if ( ! current_user_can( $taxonomy_object->cap->assign_terms ) ) {
 		wp_die( -1 );
 	}
 
@@ -1182,7 +1184,7 @@ function wp_ajax_get_tagcloud() {
 	);
 
 	if ( empty( $tags ) ) {
-		wp_die( $tax->labels->not_found );
+		wp_die( $taxonomy_object->labels->not_found );
 	}
 
 	if ( is_wp_error( $tags ) ) {
@@ -2143,10 +2145,10 @@ function wp_ajax_inline_save() {
 function wp_ajax_inline_save_tax() {
 	check_ajax_referer( 'taxinlineeditnonce', '_inline_edit' );
 
-	$taxonomy = sanitize_key( $_POST['taxonomy'] );
-	$tax      = get_taxonomy( $taxonomy );
+	$taxonomy        = sanitize_key( $_POST['taxonomy'] );
+	$taxonomy_object = get_taxonomy( $taxonomy );
 
-	if ( ! $tax ) {
+	if ( ! $taxonomy_object ) {
 		wp_die( 0 );
 	}
 
@@ -2208,15 +2210,16 @@ function wp_ajax_find_posts() {
 	$post_types = get_post_types( array( 'public' => true ), 'objects' );
 	unset( $post_types['attachment'] );
 
-	$s    = wp_unslash( $_POST['ps'] );
 	$args = array(
 		'post_type'      => array_keys( $post_types ),
 		'post_status'    => 'any',
 		'posts_per_page' => 50,
 	);
 
-	if ( '' !== $s ) {
-		$args['s'] = $s;
+	$search = wp_unslash( $_POST['ps'] );
+
+	if ( '' !== $search ) {
+		$args['s'] = $search;
 	}
 
 	$posts = get_posts( $args );
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 6735a7fdd7..73789db28b 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.1-alpha-53800';
+$wp_version = '6.1-alpha-53801';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.