A rope to confine the weather lower corners of the courses and staysails when the wind crosses the ship's course obliquely. Also, the rope employed to haul out the lower outer clue of a studding-sail to the boom-end. With jibs and fore-and-aft sails, the tack confines them amidships. A ship is said to be on the tack of the side from which the wind comes: even if it be on the quarter.