/ Dictionary / Index G ground water: Meaning and Definition of Find definitions for: ground' wa"ter Pronunciation: [key] the water beneath the surface of the ground, consisting largely of surface water that has seeped down: the source of water in springs and wells. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ground track ground wave Related Content Daily Word Quiz: denizen Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language