noun
1. the cardinal number that is the sum of twenty and one (Freq. 1)
• Syn: ↑21, ↑XXI
• Hypernyms: ↑large integer
2. 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
• Syn: ↑blackjack, ↑vingt-et-un
adjective
being one more than twenty (Freq. 3)
• Syn: ↑21, ↑xxi
• Similar to: ↑cardinal
Useful english dictionary. 2012.