/ Dictionary / Index G granddad: Meaning and Definition of Find definitions for: grand•dad Pronunciation: (gran'dad"), [key] — n. Informal. grandfather. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: granddad (Thesaurus) Grand Cru granddaddy Related Content Daily Word Quiz: pudgy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language