[tuhn-ij] 
| 1. | the capacity of a merchant vessel, expressed either in units of weight, as deadweight tons, or of volume, as gross tons. |
| 2. | ships collectively considered with reference to their carrying capacity or together with their cargoes. |
| 3. | a duty on ships or boats at so much per ton of cargo or freight, or according to the capacity in tons. |
| tunnage | |
noun | |
| a tax imposed on ships that enter the US; based on the tonnage of the ship [syn: tonnage] |
ɪdʒ