/ Dictionary / Index T thirty-nine: Meaning and Definition of Find definitions for: thir•ty-nine Pronunciation: (thûr'tē-nīn'), [key] — n. a cardinal number, 30 plus 9. a symbol for this number, as 39 or XXXIX. a set of this many persons or things. —adj. amounting to 39 in number. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: thirty-nine (Thesaurus) thirty-fourth thirty-ninth Related Content Daily Word Quiz: digression Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language