DICT.TW Dictionary Taiwan

 twen·ty-one /ˌtwɛntiˈwʌn, ˌtwʌn-/
 no.二十一

 twenty-one
      adj : being one more than twenty [syn: 21, xxi]
      n 1: the cardinal number that is the sum of twenty and one [syn:
           21, XXI]
      2: a gambling game using cards; the object is to hold cards
         having a higher count than those dealt to the bank up to
         but not exceeding 21 [syn: blackjack, vingt-et-un]