Swing ports. Iron doors in the ship's side which open outwards to free the decks from water.
Tackle (pronounced "taykel"). Blocks, ropes, pulleys etc.
Take a caulk. To sleep upon the deck.
Topsails. The second and third sails from the deck on the masts of a modern square-rigged ship are known as the lower and upper topsails.
Trucks. The summits of the masts.
Upper topsail. The third square sail from the deck on the masts of square-rigged ships.
Yards. The steel or wooden spars (placed across masts) from which square sails are set.
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