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(twĕn′tē-wŭn′, twŭn′-)
n. Games


(Card Games) another name (esp US) for pontoon21


1. a cardinal number, 20 plus 1.
2. a symbol for this number, as 21 or XXI.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.twenty-one - the cardinal number that is the sum of twenty and onetwenty-one - the cardinal number that is the sum of twenty and one
large integer - an integer equal to or greater than ten
2.twenty-one - a gambling game using cardstwenty-one - 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
card game, cards - a game played with playing cards
Adj.1.twenty-one - being one more than twentytwenty-one - being one more than twenty    
References in classic literature ?
The personal estate, or, in other words, the money to which Miss Fairlie would become entitled on reaching the age of twenty-one years, is the next point to consider.
By degrees, the number of his people increased, until, by midnight, there were twenty-one of them about the camp, who began to be impudent and troublesome.
The hundred largest hotels in New York City have twenty-one thousand telephones--nearly as many as the continent of Africa and more than the kingdom of Spain.