/ Dictionary / Index G ground alert: Meaning and Definition of Find definitions for: ground' alert" Pronunciation: [key] — Mil. Mil. the state of waiting for orders in or near combat airplanes ready to take to the air at once. the aircraft standing by during a ground alert. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. groundage ground bait 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