[twen-tee-wuhn, twuhn-] 
| 1. | a cardinal number, 20 plus 1. |
| 2. | a symbol for this number, as 21 or XXI. |
| 3. | a set of this many persons or things. |
| 4. | Also, 21. Also called blackjack. a gambling game at cards, in which the object is to obtain from the dealer cards whose values add up to, or close to, 21 but which do not exceed it. |
| 5. | amounting to 21 in number. |
| 21 | |
adjective | |
| 1. | being one more than twenty [syn: twenty-one] |
noun | |
| 1. | the cardinal number that is the sum of twenty and one [syn: twenty-one] |
tiˈwʌn