Definition of "prop"

An object placed against or under another, to support it; anything that supports.  examples

(rugby) The player on either side of the hooker in a scrum.  examples

Any of the seashells in the game of props.  examples

(transitive, sometimes figurative) To support or shore up something.  examples

(intransitive) To play rugby in the prop position.  examples

(transitive, usually with "up" - see prop up) To position the feet of (a person) while sitting, lying down, or reclining so that the knees are elevated at a higher level.  examples

(theater, film) An item placed on a stage or set to create a scene or scenario in which actors perform.  examples

An item placed within an advertisement in order to suggest a style of living etc.  quotations  examples

The propeller of an aircraft.  examples

To manually start the engine of a propeller-driven aircraft with no electric starter by pulling vigorously on one of the propeller blades using the hands, so that the propeller can catch ignition.  examples

A proposition, especially on an election-day ballot.  examples

(astronautics) propellant (“rocket fuel”)  examples

(gambling, informal) Short for proposition player.  examples

(Internet slang) A part of a plant reared for its multiplication.

(bodybuilding slang) Testosterone propionate.  examples