/ Dictionary / Index H H.S.: Meaning and Definition of Find definitions for: H.S. Pronunciation: [key] High School. Home Secretary. h.s. Pronunciation: [key] in this sense. (in prescriptions) at bedtime. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: hs (Thesaurus) Hrvatska H.S.H. 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