(n.) A certain weight or quantity of merchandise, with reference to transportation as freight; as, six hundred weight of ship bread in casks, seven hundred weight in bags, eight hundred weight in bulk; ten bushels of potatoes; eight sacks, or ten barrels, of flour; forty cubic feet of rough, or fifty cubic feet of hewn, timber, etc.
TON
Meaning of TON in English
Webster's English dictionary. Английский словарь Webster. 2012