tonnage /ˈtʌnɪdʒ/ noun [U] MEASURES, TRANSPORT
› the size of a ship calculated in tons: Liability for environmental damage is calculated according to a ship's tonnage.
› the weight of goods that a ship or other vehicle can carry: There has been a fall in cargo tonnage over the last two years. A growing annual tonnage of wheat is transported along these routes. → See also GRT, net registered tonnage