/ Dictionary / Index H H.Q.: Meaning and Definition of Find definitions for: H.Q. Pronunciation: [key] headquarters. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: hq (Thesaurus) HPV HR Related Content Daily Word Quiz: persevere Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language