main·land 
/ˈmeɪnˌlænd/ noun
/ˈmeɪnˌlænd/ noun [singular] : a large area of land that forms a country or a continent and that does not include islands — used with the ▪ the Chinese mainland = the mainland of China ▪ After spending a week on the tiny island, we were happy to return to the mainland. — often used before another noun ▪ mainland China
