/ Dictionary / Index G grandbaby: Meaning and Definition of Find definitions for: grand•ba•by Pronunciation: (gran'bā"bē, grand'-), [key] — pl. -bies. an infant grandchild. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. grandaunt Grand Bahama Related Content Daily Word Quiz: blanch Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language