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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    
cardinal - being or denoting a numerical quantity but not order; "cardinal numbers"
References in classic literature ?
When he was twenty-one years old Enoch went to New York City and was a city man for fifteen years.
He wants me to find him a trustworthy young groom, about twenty or twenty-one, who knows his business.
The one was to overthrow the Catholic Church and set up the Protestant faith on its ruins -- not as an Established Church, but a go-as-you-please one; and the other project was to get a decree issued by and by, commanding that upon Arthur's death unlimited suffrage should be introduced, and given to men and women alike -- at any rate to all men, wise or unwise, and to all mothers who at middle age should be found to know nearly as much as their sons at twenty-one.
and twenty-one of them wore that significant badge.
You will be free as soon as you are twenty-one, ~but I am a slave for life
Twenty-two friends of high public mark, twenty-one living and one dead, it had lopped the heads off, in one morning, in as many minutes.
In addition to all this he had found time to be twenty-one years a policeman, and to beget and rear successfully twelve children.
The tower within forms a complete circle, twenty-one feet in diameter, the walls fourteen feet thick.
The nurseries for children of ordinary gentlemen, merchants, traders, and handicrafts, are managed proportionably after the same manner; only those designed for trades are put out apprentices at eleven years old, whereas those of persons of quality continue in their exercises till fifteen, which answers to twenty-one with us: but the confinement is gradually lessened for the last three years.
Charles of England had ridden in stirrups hung with four hundred and twenty-one diamonds.
He was a little over twenty-one years of age and looked eighteen.
Cide Hamete Benengeli, the Arab and Manchegan author, relates in this most grave, high-sounding, minute, delightful, and original history that after the discussion between the famous Don Quixote of La Mancha and his squire Sancho Panza which is set down at the end of chapter twenty-one, Don Quixote raised his eyes and saw coming along the road he was following some dozen men on foot strung together by the neck, like beads, on a great iron chain, and all with manacles on their hands.