(sports, snowboarding, skiing) Clipping of 1260. (1260° spin) / (slang, US, derogatory) Collectively, police or law enforcement. / See also: fuck 12

(sports) Used by fans of American football, positioning themselves as the 12th member of an 11-player team.

plural of 12

(curling) The 12-foot diameter circle outermost in the house.

(physics) The most abundant of the two stable isotopes of carbon, ¹²₆C, having six protons and six neutrons; it is the standard for atomic weight and is used to define the mole.

(Canada, US, education) Kindergarten through 12th grade (US)/grade 12 (Canada).

plural of 12-foot

(slang, vulgar, derogatory) Fuck the police, an anti-police slogan protesting police behaviour.

Alternative spelling of grade twelve

Under the Whyte notation system, a steam locomotive that has four coupled leading wheels, twelve coupled driving wheels, and one pair of trailing wheels.