The weight of goods carried in a boat or a ship.

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).

A duty or impost on vessels, estimated per ton, or, a duty, toll, or rate payable on goods per ton transported on canals.

The whole amount of shipping estimated by tons; as, the tonnage of the United States. See Ton.

Deadweight, gross, net, displacement; a quantity of cargo normally expressed as a number of tons.

A tax on boats based upon the number of tons of cargo they carry.

The unit of measure used in air conditioning to describe the cooling capacity of a system. One ton of cooling is based on the amount of heat needed to melt one ton (2000 lbs.) of ice in a 24 hour period. One ton of cooling is equal to 12,000 Btu/hr.

This term is used in various contexts in the maritime industry to describe: . the cubic capacity of a vessel, . the displacement of a vessel in tons of water, . the total weight of the cargo, or . a fee charged per ton of cargo at a port, pier, dock or canal.

The amount of waste that a landfill accepts, usually expressed in tons per month. The rate at which a landfill accepts waste is limited by the landfill´s permit.

The cubical content or burden of a ship, in tons, or the amount of weight which she may carry.

Cubic capacity of a merchant vessel. Total weight or amount of cargo expressed in tons.

A number used to indicate a vessel's cargo capacity.

Carrying capacity of a ship, its cubic content in units of 100 cubic feet. Also the total cargo weight measured in tons.

The carrying capacity of a ship expressed in tons of 100 cubic feet; the total weight. See gross registered ton.

The unit of measure used in air conditioning to describe the heating or cooling capacity of a system. One ton of heat represents the amount of heat needed to melt one ton (2000 lbs.) of ice in one hour. 12,000 Btu/hr equals one ton of heat.

a tax imposed on ships that enter the US; based on the tonnage of the ship

A ton of refrigeration is the amount of heat required to melt a ton (2000 lb.) of ice at 32o F, 288,000 Btu/24 h, 12,000 Btu/h, or 200 Btu/min.

there are three tonnage figures used for merchant ships: a. Deadweight (dwt) - this is the weight in tons of the cargo, stores, fuel, etc. carried by a ship when down to her loading marks. It indicates a ship's cargo-carrying and earning capacity. b. Gross Register (gt) - the total cubic capacity of all enclosed spaces at 100 cu. ft. to the ton. It is used for general purposes and in national maritime registers. c. Net register (nt) - measured in the same way as gross tonnage, the net register is the capacity of enclosed space less that of the engine and boiler rooms, crew accommodation, stores, and all spaces necessary for the working of the ship. It is the cubic capacity of all earning space. It is on the tonnage figure that most harbour dues and other charges are calculated.

A measurement of the carrying capacity of a vessel. It is what wins in a collision between two yachts :-) This little footnote from Paul Curtis

size of a vessel, expressed in tons; not necessarily based on weight

Cubic capacity of a ship.

Gross Tonnage - Total internal carrying capacity of a vessel expressed in measurement tons (one measurement ton = 100 cu. ft.).

Press hydraulic pressure times cylinder area, expressed in U.S. tons.

Synonymous with â€œvesselâ€.

Tonnage is a measure of the size or cargo capacity of a ship. The term derives from the taxation paid on tuns of wine, and was later used in reference to the weight of a ship's cargo; however, in modern maritime usage, "tonnage" specifically refers to a calculation of the volume or cargo volume of a ship. The term is still sometimes incorrectly used to refer to the weight of a loaded or empty vessel.