prop

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

“They stuck a block of wood under it as a prop.”

The player on either side of the hooker in a scrum.

One of the seashells in the game of props.

(sometimes figurative) To support or shore up something.

“Try using a phone book to prop up the table where the foot is missing.”

To play rugby in the prop position

(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.

An item placed on a stage or set to create a scene or scenario in which actors perform.

“They used the trophy as a prop in the movie.”

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

The propeller of an aircraft.

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.

A proposition, especially on an election-day ballot.

Propellant