Tack. To proceed against the wind by zigzags. The forward corner of a fore-and-aft sail.
Tackle. Any arrangement of ropes and blocks.
Taut. Tight.
Truck. The top of a mast.
Unbend. To cast off; to unfasten.
Veer. To turn. To pay out cable.
Wake. The track left by a vessel in the water.
Watch. A division of the crew. The length of time a man is on duty.
Wear. To turn a boat’s head into the wind and then around until she has the wind on the opposite side.
Weather helm. When a tiller or helm must be kept to windward to prevent a boat from flying into the wind.