/ Dictionary / Index G gas fitting: Meaning and Definition of Find definitions for: gas' fit"ting Pronunciation: [key] the work or business of a gas fitter. fittings for the use of illuminating gas. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. gas fitter gas furnace Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language