Definitions
1.nounA unit of weight (mass) equal to 2240 pounds (a long ton) or 2000 pounds (a short ton) or 1000 kilograms (a metric ton).
2.nounA unit of volume; register ton.
3.nounIn refrigeration and air conditioning, a unit of thermal power defined as 12,000 BTU/h (about 3.514 kW or 3024 kcal/h), originally the rate of cooling provided by uniform isothermal melting of one short ton of ice per day at 32 °F (0 °C).
4.nounA large amount."I've got tons of work to do."
5.nounA speed of 100 mph.
6.nounOne hundred pounds sterling.
7.nounOne hundred runs.
8.noun(etc.) One hundred points scored.
9.nounThe common tunny, or horse mackerel.
10.nounLots; large quantities or numbers (of people or things)."I have tons of pens, but none of them work."