/ Dictionary / Index G ground plate: Meaning and Definition of Find definitions for: ground' plate" Pronunciation: [key] a metal plate for making a ground connection to the earth. groundsill. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ground plane groundplot Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language