/ Dictionary / Index S seventy-nine: Meaning and Definition of Find definitions for: sev•en•ty-nine Pronunciation: (sev'un-tē-nīn'), [key] — n. a cardinal number, 70 plus 9. a symbol for this number, as 79 or LXXIX. a set of this many persons or things. —adj. amounting to 79 in number. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: seventy-nine (Thesaurus) seventy-fourth seventy-ninth Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language