/ Dictionary / Index G ground fault: Meaning and Definition of Find definitions for: ground' fault" Pronunciation: [key] the momentary, usually accidental, grounding of a conducting wire. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. grounder ground-fault interrupter Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language