/ Dictionary / Index M Muscovy: Meaning and Definition of Find definitions for: Mus•co•vy Pronunciation: (mus'ku-vē), [key] — n. Also calleda principality founded c1271 and centered on the ancient city of Moscow. Its rulers gradually gained control over the neighboring Great Russian principalities and established the Russian Empire under the czars. Moscow. Russia. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: muscovy (Thesaurus) Muscovite Muscovy duck Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language