/ Dictionary / Index F forty-nine: Meaning and Definition of Find definitions for: for•ty-nine Pronunciation: (fôr'tē nīn'), [key] — n. a cardinal number, 40 plus 9. a symbol for this number, as 49 or XLIX. a set of this many persons or things. —adj. amounting to 49 in number. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: forty-nine (Thesaurus) fortyish forty-niner 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