- the capacity of a merchant vessel, expressed either in units of weight, as deadweight tons, or of volume, as gross tons.
- ships collectively considered with reference to their carrying capacity or together with their cargoes.
- a duty on ships or boats at so much per ton of cargo or freight, or according to the capacity in tons.
Origin of tonnage
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for tunnage
For instance, tunnage and poundage were appropriated for naval defenses.Our Legal Heritage, 5th Ed.
S. A. Reilly
- a variant spelling of tonnage
- the capacity of a merchant ship expressed in tons, for which purpose a ton is considered as 40 cubic feet of freight or 100 cubic feet of bulk cargo, unless such an amount would weigh more than 2000 pounds in which case the actual weight is used
- the weight of the cargo of a merchant ship
- the total amount of shipping of a port or nation, estimated by the capacity of its ships
- a duty on ships based either on their capacity or their register tonnage
C15: from Old French, from tonne barrel
Word Origin and History for tunnage
Online Etymology Dictionary, © 2010 Douglas Harper