Breadcrumb Home > Dictionary Cite Meaning of Mysia Find definitions for: My•si•a Pronunciation: (mish'ē-u), [key] — n. an ancient country in NW Asia Minor. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. myself mysid Related Content Daily Word Quiz: polemic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language