Korea /kəˈɹiːə/ noun3 •A geographic region in East Asia, consisting of two countries, commonly known as South Korea and North Korea; formerly a single country.After the death of the empress Papûsha he had been banished into Korea, from whence he was removed to Quey-lin Fû, the capital of Quang-si. — 1780 •(informal) South Korea: A country in East Asia, comprising the southern part of the Korean Peninsula. •(rare) North Korea: A country in East Asia, whose territory consists of the northern part of Korea. formsKoreas