/ Dictionary / Index S sparker: Meaning and Definition of Find definitions for: spark•er Pronunciation: (spär'kur), [key] — n. something that produces sparks. an apparatus used to test insulation on wires. spark•er Pronunciation: (spär'kur), [key] — n. a lover, swain, or beau. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sparker (Thesaurus) spark coil spark gap Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language