Synonyms for Prop (same or very similar meaning)
WordNet sense 1 (any movable articles or objects used on the set of a play or movie):
propertyWordNet sense 2 (a propeller that rotates to push against air):
airscrew, airplane propellerWordNet sense 3 (support by placing against something solid or rigid):
shore, prop up, shore upFrom the ODE community, based on WordNetadd/edit