/ Dictionary / Index G grandpappy: Meaning and Definition of Find definitions for: grand•pap•py Pronunciation: (gran'pap"ē, grand'-, gram'-), [key] — pl. -pies. grandfather. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. grandpapa grandparent Related Content Daily Word Quiz: portent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language