/ Dictionary / Index G ground fog: Meaning and Definition of Find definitions for: ground' fog" Pronunciation: [key] a low, often dense fog, esp. one through which the sky and clouds above can be seen. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ground floor ground glass Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language