/ Dictionary / Index T thirty-three: Meaning and Definition of Find definitions for: thir•ty-three Pronunciation: (thûr'tē-thrē'), [key] — n. a cardinal number, 30 plus 3. a symbol for this number, as 33 or XXXIII. a set of this many persons or things. —adj. amounting to 33 in number. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: thirty-three (Thesaurus) Thirty-thirty. thirty-two Related Content Daily Word Quiz: resilient Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language