Timenoguy. A rope carried taut between different parts of the vessel, to prevent the sheet or tack of a course from getting foul, in working ship.

Toggle. A pin placed through the bight or eye of a rope, block-strap, or bolt, to keep it in its place, or to put the bight or eye of another rope upon, and thus to secure them both together.

Tompion. A bung or plug placed in the mouth of a cannon.

Top. A platform, placed over the head of a lower mast, resting on the trestle-trees, to spread the rigging, and for the convenience of men aloft. (See Plate 1.)

To top up a yard or boom, is to raise up one end of it by hoisting on the lift.

Top-block. A large iron-bound block, hooked into a bolt under the lower cap, and used for the top-rope to reeve through in sending up and down topmasts.

Top-light. A signal lantern carried in the top.

Top-lining. A lining on the after part of sails, to prevent them from chafing against the top-rim.

Topmast. (See Plate 1.) The second mast above the deck. Next above the lower mast.

Topgallant Mast. (See Plate 1.) The third mast above the deck.