/ Dictionary / Index S seventy-five: Meaning and Definition of Find definitions for: sev•en•ty-five Pronunciation: (sev'un-tē-fīv'), [key] — n. a cardinal number, 70 plus 5. a symbol for this number, as 75 or LXXV. a set of this many persons or things. a gun with a 75-mm caliber. the field gun of that caliber used in the French and U.S. armies in World War I. —adj. amounting to 75 in number. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: seventy-five (Thesaurus) seventy-first seventy-four 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