newsupernova/vendor/magento/module-search/Controller/RegistryConstants.php

<?php
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
namespace Magento\Search\Controller;

/**
 * Declarations of core registry keys used by the search module
 *
 */
class RegistryConstants
{
    /**
     * Registry key where current synonyms page is stored
     */
    const SEARCH_SYNONYMS = 'search_synonyms';
}