/ Dictionary / Index F forty-ninth: Meaning and Definition of Find definitions for: for•ty-ninth Pronunciation: (fôr'tē nīnth'), [key] — adj. next after the forty-eighth; being the ordinal number for 49. being one of 49 equal parts. —n. a forty-ninth part, esp. of one (). the forty-ninth member of a series. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: forty-ninth (Thesaurus) forty-niner forty-one Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language