/ Dictionary / Index M Mona Passage: Meaning and Definition of Find definitions for: Mo'na Pas'sage Pronunciation: (mō'nu Sp. mô'nä), [key] a strait between Hispaniola and Puerto Rico. 80 mi. (129 km) wide. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. monandry monarch Related Content Daily Word Quiz: sylvan Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language