/ Dictionary / Index H H.R.H.: Meaning and Definition of Find definitions for: H.R.H. Pronunciation: [key] His Royal Highness. Her Royal Highness. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. H. Res. H.R.I.P. Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language