[stop-er] 
| 1. | a person or thing that stops. |
| 2. | a plug, cork, bung, or other piece for closing a bottle, tube, drain, or the like. |
| 3. | Informal. something or someone that commands attention, as an unusual window display or a flamboyant person. |
| 4. | Cards. a card in a suit that prevents the successive taking of all tricks in the suit by the opponents. |
| 5. | 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. |
| 6. | to close, secure, or fit with a stopper. |
| stop·per (stŏp'ər) n.
To close with or as if with a stopper. |
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