/ Dictionary / Index G gpad: Meaning and Definition of Find definitions for: gpad Pronunciation: [key] gallons per acre per day. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. GPA gpcd Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language