/ Dictionary / Index T twenty-three: Meaning and Definition of Find definitions for: twen•ty-three Pronunciation: (twen'tē-thrē', twun'-), [key] — n. a cardinal number, 20 plus 3. a symbol for this number, as 23 or XXIII. a set of this many persons or things. —adj. amounting to 23 in number. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: twenty-three (Thesaurus) Twenty Thousand Leagues Under the Sea* twenty-twenty Related Content Daily Word Quiz: cur Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language