apron (Noun) — A garment of cloth, leather or plastic that is tied about the waist and worn to protect your clothing.
apron (Noun) — (golf) the part of the fairway leading onto the green.
apron (Noun) — The part of a modern theatre stage between the curtain and the orchestra (i.e., in front of the curtain).
apron (Noun) — A paved surface where aircraft stand while not being used.