ton

noun

1. Any of various units of mass, originally notionally equal to the contents of a tun
2. Any of various units of mass, originally notionally equal to the contents of a tun
3. Any of various units of mass, originally notionally equal to the contents of a tun
4. Any of various units of volume, originally notionally equal to the contents of a tun
5. Any of various units of volume, originally notionally equal to the contents of a tun
6. (figuratively)Any large, excessive, or overwhelming amount of anything.

   “I’ve got a ton of work to do.”

   “I've got tons of work to do.”

7. A unit of thermal power equal to 12,000 BTU/h (about 3.5 kW), approximating the idealized rate of cooling provided by uniform isothermal melting of 1 short ton of ice per day at 0°C.

   “Their main problem is that they somehow believe that a 12-ton unit can handle this entire building.”

8. (UK, colloquial)Synonym of hundred
9. (UK, colloquial, usually)Synonym of hundred
10. (UK, colloquial)Synonym of hundred
11. (UK, colloquial)Synonym of hundred

    “Speed along the lane / Do a ton or a ton and twenty-five”

    “So the old Rocker gets out his bike To make a ton before he takes his leave.”

    “Neil: How fast can this thing go then, do you reckon? Simon: Well, it's the special edition, so I reckon it could probably top a ton. Neil: Bollocks!”

    “The HSDT team, however, had some work to do, although by the end of 1972 the power car interior had been adjusted and BR had agreed to 'double-manning' with extra pay when speeds topped the ton.”

12. (uncountable)Fashion, the current style, the vogue.

    “A clergyman cannot be high in state or fashion. He must not head mobs, or set the ton in dress.”

    “If our people of ton are selfish, at any rate they show they are selfish.”

13. (uncountable)Fashionable society; those in style.

    “[S]he thought herself incapable of being flattered by the attentions of a man she despised, because he was the reigning idol of the ton […].”

    “The party might consist of thirty three Of highest caste—the Brahmins of the ton.”

    “Pen was somewhat older than many of his fellow-students, and there was that about his style and appearance, which, as we have said, was rather haughty and impertinent, that stamped him as a man of ton—very unlike those pale students who were talking law to one another, and those ferocious dandies, in rowing shirts and astonishing pins and waistcoats, who represented the idle part of the little community.”

    “He had no plans to marry. Ever. And there wasn’t much point in attending ton parties if one wasn’t looking for a wife.”

14. Synonym of tunny, particularly the common tunny or horse mackerel.
15. (abbreviation, alt-of, initialism)Initialism of threshold odor number.