/ Dictionary / Index M Matterhorn: Meaning and Definition of Find definitions for: Mat•ter•horn Pronunciation: (mat'ur-hôrn"), [key] — n. a mountain on the border of Switzerland and Italy, in the Pennine Alps. 14,780 ft. (4505 m). French, Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: matterhorn (Thesaurus) matterate matter in deed Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language