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twenty-one

[ twen-tee-wuhn, twuhn- ]
/ ˈtwɛn tiˈwʌn, ˈtwʌn ti- /
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noun
a cardinal number, 20 plus 1.
a symbol for this number, as 21 or XXI.
a set of this many persons or things.
Also 21. Cards. blackjack (def. 1a).
adjective
amounting to 21 in number.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use twenty-one in a sentence

British Dictionary definitions for twenty-one

twenty-one

noun
another name (esp US) for pontoon 2 (def. 1)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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