/ Dictionary / Index M Morro Castle: Meaning and Definition of Find definitions for: Mor'ro Cas'tle Pronunciation: (môr'ō, mor'ō Sp. môr'rô), [key] a historic fort at the entrance to the harbor of Havana, Cuba. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Morristown morrow Related Content Daily Word Quiz: morose Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language