Dictionary definition · prop
noun
- a support placed beneath or against something to keep it from shaking or falling
- any movable articles or objects used on the set of a play or movie"before every scene he ran down his checklist of props"
- a propeller that rotates to push against air
verb
- support by placing against something solid or rigid"shore and buttress an old building"
Source: Open English WordNet (CC BY 4.0).