/ Dictionary / Index H hellhound: Meaning and Definition of Find definitions for: hell•hound Pronunciation: (hel'hound"), [key] — n. a mythical watchdog of hell. a fiendish person. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: hellhound (Thesaurus) hellhole Hellinger Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language