[{"Bold_text": "noun", "List Items": ["a person or thing that stops .", "a plug, cork, bung, or other piece for closing a bottle, tube, drain, or the like.", "Informal.something or someone that commands attention, as an unusual window display or a flamboyant person.", "Cards.a card in a suit that prevents the successive taking of all tricks in the suit by the opponents.", "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."]}, {"Bold_text": "verb (used with object)", "List Items": ["to close, secure, or fit with a stopper."]}]