/ Dictionary / Index H horst: Meaning and Definition of Find definitions for: horst Pronunciation: (hôrst), [key] — n. a portion of the earth's crust, bounded on at least two sides by faults, that has risen in relation to adjacent portions. Cf. graben. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: horst (Thesaurus) hor. som. Horst Wessel song* Related Content Daily Word Quiz: gossamer Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language