■ cardinal number
1》 equivalent to the product of three and four; two more than ten; 12. (Roman numeral: xii or XII .)
2》 ( the Twelve ) the ~ Apostles.
3》 ( 12 ) Brit. (of a film) classified as suitable for people of 12 years and over.
Origin
OE twelf(e) , from the base of two + a second element (prob. expressing the sense 'left over'); of Gmc origin; cf. eleven .