/ Dictionary / Index H hhd: Meaning and Definition of Find definitions for: hhd Pronunciation: [key] hogshead; hogsheads. HH.D. Pronunciation: [key] Doctor of Humanities. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. H.H. HHFA Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language