<p><strong>Noun:</strong></p><ul><li>A person or thing that stops.</li><li>A plug, cork, bung, or other piece for closing a bottle, tube, drain, or the like.</li><li>Informal: Something or someone that commands attention, as an unusual window display or a flamboyant person.</li><li>Cards: A card in a suit that prevents the successive taking of all tricks in the suit by the opponents.</li><li>Baseball Slang: A formidably and consistently effective pitcher counted on to win, as a team's best starting pitcher or a superior reliever often called on to preserve a victory; pitching ace.</li></ul><p><strong>Verb (used with object):</strong></p><ul><li>To close, secure, or fit with a stopper.</li></ul>