/ Dictionary / Index M main gauche: Meaning and Definition of Find definitions for: main gauche Pronunciation: (Fr. man gōsh'), [key] a dagger of the 16th and 17th centuries, held in the left hand in dueling and used to parry the sword of an opponent. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mainframe mainland Related Content Daily Word Quiz: censure Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language