Main entry: prop, airplane propeller, airscrew
Definition: a propeller that rotates to push against air
Main entry: prop
Definition: a support placed beneath or against something to keep it from shaking or falling
Definition: any movable articles or objects used on the set of a play or movie
Usage: before every scene he ran down his checklist of props
Main entry: prop, prop up, shore, shore up
Definition: support by placing against something solid or rigid
Usage: shore and buttress an old building