twenty-one

Noun twenty-one has 2 senses

• twenty-one(n = noun.quantity) 21, xxi - the cardinal number that is the sum of twenty and one;
is a kind of large integer

• twenty-one(n = noun.act) blackjack, vingt-et-un - a gambling game using cards; the object is to hold cards having a higher count than those dealt to the banker up to but not exceeding 21;
is a kind of card game, cards

Adjective twenty-one has 1 sense

• twenty-one(s = adj.all) 21, xxi - being one more than twenty;