"Twenty_one" is probably misspelled. Trying twenty-one instead Definition of twenty-one
twenty-one has definitions from the fields of cards,games,mathematics
1
[ adjective ] being one more than twenty

Synonyms

21 xxi

2
[ noun ] (mathematics) the cardinal number that is the sum of twenty and one

Synonyms

21 XXI

3
[ noun ] (cards,games) a card game in which the object is to hold cards having a higher count than those dealt to the bank up to but not exceeding 21
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