a unit of weight, equivalent to 2000 pounds (0.907 metric ton) avoirdupois (short ton) in the U.S. and 2240 pounds (1.016 metric tons) avoirdupois (long ton) in Great Britain.
2.
Also called freight ton.a unit of volume for freight that weighs one ton, varying with the type of freight measured, as 40 cubic feet of oak timber or 20 bushels of wheat.
(Brit) Also called: long ton a unit of weight equal to 2240 pounds or 1016.046909 kilograms
2.
(US) short ton, Also called: net ton a unit of weight equal to 2000 pounds or 907.184 kilograms
3.
metric ton, Also called: tonne a unit of weight equal to 1000 kilograms
4.
Also called: freight ton a unit of volume or weight used for charging or measuring freight in shipping. It depends on the type of material being shipped but is often taken as 40 cubic feet, 1 cubic metre, or 1000 kilograms: freight is charged at £40 per ton of 1 cubic metre
5.
measurement ton, Also called: shipping ton a unit of volume used in shipping freight, equal to 40 cubic feet, irrespective of the commodity shipped
6.
Also called: displacement ton a unit used for measuring the displacement of a ship, equal to 35 cubic feet of sea water or 2240 pounds
7.
Also called: register ton a unit of internal capacity of ships equal to 100 cubic feet
[C14: variant of tun]
ton2 (tɔ̃)
—n
style, fashion, or distinction
[C18: from French, from Latin tonustone]
ton3 (tʌn)
—n
slangchiefly (Brit) a score or achievement of a hundred, esp a hundred miles per hour, as on a motorcycle
[C20: special use of ton1 applied to quantities of one hundred]
late 14c., tonne, unit for measuring the carrying capacity of a ship, originally "space occupied by a tun or cask of wine," thus identical to tun (q.v.). The two words were not differentiated until 1680s. The measure of weight is first recorded late 15c.; the spelling ton is
from 1530s, and became firmly established 18c. Tonnage (early 15c.) originally was "tax or duty on wine imported in tuns." Modern tonne (1877) is the Fr. form of the word, adopted for Eng. use to denote a metric ton (1,000 kg.).