/ Dictionary / Index H hate mail: Meaning and Definition of Find definitions for: hate' mail" Pronunciation: [key] letters, telegrams, etc., that express prejudice or disagreement in abusive or threatening terms. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hateful hatemonger Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language