| Noun | 1. | prop - a support placed beneath or against something to keep it from shaking or fallingpitprop, sprag - a wooden prop used to support the roof of a mine support - supporting structure that holds up or provides a foundation; "the statue stood on a marble support" | |
| 2. | prop - any movable articles or objects used on the set of a play or movie; "before every scene he ran down his checklist of props"object, physical object - a tangible and visible entity; an entity that can cast a shadow; "it was full of rackets, balls and other objects" custard pie - a prop consisting of an open pie filled with real or artificail custard; thrown in slapstick comedies | |
| 3. | prop - a propeller that rotates to push against air | |
| Verb | 1. | prop - support by placing against something solid or rigid; "shore and buttress an old building"hold up, support, sustain, hold - be the physical support of; carry the weight of; "The beam holds up the roof"; "He supported me with one hand while I balanced on the beam"; "What's holding that mirror?" bolster - prop up with a pillow or bolster | |