southern province: The southern part of a do, the highest unit of administrative division in Korea, when the do is comprised of northern and southern provinces.

southern provinces: A term that refers to the provinces south of Gyeonggi-do, or Gyeonggi Province, all together, which include Chungcheong-do, or Chungcheong Province, Jeolla-do, or Jeolla Province, Gyeongsang-do, or Gyeongsang Province, and Jeju-do, or Jeju Province.