/ Dictionary / Index M mainland: Meaning and Definition of Find definitions for: main•land Pronunciation: (mān'land", -lund), [key] — n. the principal land of a country, region, etc., as distinguished from adjacent islands or a peninsula: the mainland of Greece. (in Hawaii) the 48 contiguous states of the U.S. Main•land Pronunciation: (mān'land", -lund), [key] — n. the largest of the Shetland Islands. 18,268; ab. 200 sq. mi. (520 sq. km). Pomona (def. 3). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: mainland (Thesaurus) main gauche mainland China Related Content Daily Word Quiz: penury Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language