/ Thesaurus / S Synonyms of spark gap Find synonyms for: Noun1. spark gap, component, constituent, elementusage: a component of an ignition system; consists of two shaped electrodes and the space between them2. spark gap, gap, crackusage: the gap between two high-potential terminalsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: effervescent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language