noun
- The cardinal number that is the sum of twenty and 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.
- synonyms: blackjack, vingt-et-un
adjective
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). twenty-one. Retrieved September 20, 2026, from http://smartdefine.org/twenty-one/definitions/1185887 |
| Chicago | WordNet. 2010. "twenty-one" http://smartdefine.org/twenty-one/definitions/1185887 (accessed September 20, 2026). |
| Harvard | WordNet 2010, twenty-one, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/twenty-one/definitions/1185887>. |
| MLA | WordNet. "twenty-one" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/twenty-one/definitions/1185887> |