Key: "S:" = Show Synset (semantic) relations, "W:" = Show Word (lexical) relations
Display options for sense: (gloss) "an example sentence"
Noun
S: (n) twenty-one, 21, XXI (the cardinal number that is the sum of twenty and one)
S: (n) blackjack, twenty-one, vingt-et-un (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)
Adjective
S: (adj) twenty-one, 21, xxi (being one more than twenty)