The definition of a ton is a unit of weight equal to 2,000 pounds in the United States, Canada, South Africa and other countries and equal to 2,240 pounds in Great Britain, or is slang for a large amount.(noun)
See ton in Webster's New World College Dictionary
Origin: var. (differentiated (17th-c.) for senses “weight, measure”) of tun
Origin: Fr: see tone
See ton in American Heritage Dictionary 4
noun Abbr. t. or tn.
Origin: Middle English tonne, a measure of weight; see tun.
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