(n.) A prop, as a timber, placed as a brace or support against the side of a building or other structure; a prop placed beneath anything, as a beam, to prevent it from sinking or sagging.
(v. t.) To support by a shore or shores; to prop; -- usually with up; as, to shore up a building.
(v. t.) The coast or land adjacent to a large body of water, as an ocean, lake, or large river.