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tumbler | a movable obstruction in a lock that must be adjusted to a given position (as by a key) before the bolt can be thrown | |
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roller, tumbler, tumbler pigeon | pigeon that executes backward somersaults in flight or on the ground | |
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tumbler | a gymnast who performs rolls and somersaults and twists etc. | |
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tumbler | a glass with a flat bottom but no handle or stem; originally had a round bottom |