(informal) very quickly; rapidly

Synonym of nineteen to the dozen

Ten. / Eleven.

(card games) A solitaire card game, starting with 13 piles of 4 cards each.

(American football) The twelve rookies who made the Dallas Cowboys team in 1975. / A team of twelve IBM employees, formed in 1980, who created the first IBM PC in 1981.

thirteen; baker's dozen

At a great rate; very much or rapidly.

(Australia, slang, obsolete or historical) 25 lashes, ie. strokes of a whip across a person's back as a punishment.

(idiomatic, uncommon) Seven, a group of seven.

(idiomatic) The two alternatives are equivalent or indifferent; it doesn't matter which one we choose. / (idiomatic, of two people) Equally involved; equally responsible