/ Dictionary / Index F fifty-nine: Meaning and Definition of Find definitions for: fif•ty-nine Pronunciation: (fif'tē-nīn'), [key] — n. a cardinal number, 50 plus 9. a symbol for this number, as 59 or LIX. a set of this many persons or things. —adj. amounting to 59 in number. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: fifty-nine (Thesaurus) fifty-fourth fifty-ninth Related Content Daily Word Quiz: pedagogy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language