/ Dictionary / Index H heartbreak: Meaning and Definition of Find definitions for: heart•break Pronunciation: (härt'brāk"), [key] — n. great sorrow, grief, or anguish. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: heartbreak (Thesaurus) heart block heartbreaker Related Content Daily Word Quiz: reclusive Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language