/ Dictionary / Index G greatcoat: Meaning and Definition of Find definitions for: great•coat Pronunciation: (grāt'kōt"), [key] — n. Chiefly Brit. a heavy overcoat. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: greatcoat (Thesaurus) great-circle track great council Related Content Daily Word Quiz: censure Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language