(Often in the plural, colloquial) A large number or amount.
The capacity of a vessel, or the weight of cargo that she will carry.
The freight carried by a ship, an aircraft, or another vehicle.
The maximum amount that can be contained:
A unit for measuring displacement of ships, equal to 35 cubic feet: it is approximately equal to the volume of a long ton of sea water
a tax imposed on ships that enter the US; based on the tonnage of the ship
Find another word for tonnage. In this page you can discover 8 synonyms, antonyms, idiomatic expressions, and related words for tonnage, like: load, burden, cargo, capacity, contents, ton, tunnage and tonnage duty.