n. The weight of goods carried in a boat or a ship.n. The cubical content or burden of a vessel, or vessels, in tons; or, the amount of weight which one or several vessels may carry. See Ton, n. (b).n. A duty or impost on vessels, estimated per ton, or, a duty, toll, or rate payable on goods per ton transported on canals.n. The whole amount of shipping estimated by tons. See Ton.