key = value. If you add dog = hound to the list of synonyms, searches for dog automatically become a search for dog hound and will thus match to posts that include either dog or hound. This only works in OR searches: in AND searches the synonyms only restrict the search, as now the search only finds posts that contain both dog and hound.', 'relevanssi' ); // phpcs:ignore WordPress.Security.EscapeOutput.UnsafePrintingFunction ?>

hound = dog.', 'relevanssi' ); // phpcs:ignore WordPress.Security.EscapeOutput.UnsafePrintingFunction ?>

dog = \"great dane\" works, but \"great dane\" = dog doesn't.", 'relevanssi' ); // phpcs:ignore WordPress.Security.EscapeOutput.UnsafePrintingFunction ?>