/ Dictionary / Index G grandchild: Meaning and Definition of Find definitions for: grand•child Pronunciation: (gran'chīld"), [key] — pl. -chil•dren. a child of one's son or daughter. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: grandchild (Thesaurus) Grand Cayman grand chop Related Content Daily Word Quiz: philanthropy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language