/ Dictionary / Index G greyhound: Meaning and Definition of Find definitions for: grey•hound Pronunciation: (grā'hound"), [key] — n. one of a breed of tall, slender, short-haired dogs, noted for its keen sight and swiftness. a swift ship, esp. a fast ocean liner. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: greyhound (Thesaurus) greyhen greyish Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language