| backstop | (noun) a precaution in case of an emergency | - |
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| (noun) (baseball) a fence or screen (as behind home plate) to prevent the ball from traveling out of the playing field | - |
| (noun) (baseball) the person who plays the position of catcher | Synonyms: catcher |
| doorstop | (noun) a stop that keeps open doors from moving | Synonyms: doorstopper |
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| nonstop | (noun) a flight made without intermediate stops between source and destination | Synonyms: nonstop flight |
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| shortstop | (noun) the fielding position of the player on a baseball team who is stationed between second and third base | Synonyms: short |
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| (noun) (baseball) the person who plays the shortstop position | - |
| stop | (noun) the act of stopping something | Synonyms: stoppage |
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| (noun) a brief stay in the course of a journey | Synonyms: layover, stopover |
| (noun) a restraint that checks the motion of something | Synonyms: catch |
| (noun) an obstruction in a pipe or tube | Synonyms: block, blockage, closure, occlusion, stoppage |
| (noun) a mechanical device in a camera that controls size of aperture of the lens | Synonyms: diaphragm |
| (noun) (music) a knob on an organ that is pulled to change the sound quality from the organ pipes | - |
| (noun) a consonant produced by stopping the flow of air at some point and suddenly releasing it | Synonyms: occlusive, plosive, plosive consonant, plosive speech sound, stop consonant |
| (noun) a punctuation mark (.) placed at the end of a declarative sentence to indicate a full stop or after abbreviations | Synonyms: full point, full stop, period, point |
| (noun) the event of something ending | Synonyms: halt |
| (noun) a spot where something halts or pauses | - |
| (noun) the state of inactivity following an interruption | Synonyms: arrest, check, halt, hitch, stay, stoppage |