| mainsheet | n. (Naut.) One of the ropes by which the mainsail is hauled aft and trimmed. [ 1913 Webster ] |
| sheet | (n) (nautical) a line (rope or chain) that regulates the angle at which a sail is set in relation to the wind, Syn. shroud, weather sheet, mainsheet, tack |
| mainsheet | n. (Naut.) One of the ropes by which the mainsail is hauled aft and trimmed. [ 1913 Webster ] |