1. a gymnast who performs rolls and somersaults and twists etc. (Freq. 1) • Derivationally related forms: tumble • Hypernyms: gymnast • Hyponyms: turner 2. a glass with a flat bottom but no handle or stem; originally had a round bottom (Freq. 1) • Hypernyms: glass, drinking glass 3. a movable obstruction in a lock that must be adjusted to a given position (as by a key) before the bolt can be thrown • Derivationally related forms: tumble • Hypernyms: obstruction, obstructor, obstructer, impediment, impedimenta • Hyponyms: lever, lever tumbler, pin, pin tumbler • Part Holonyms: lock 4. pigeon that executes backward somersaults in flight or on the ground • Syn: roller, tumbler pigeon • Derivationally related forms: tumble • Hypernyms: domestic pigeon
