A large indefinite location on the surface of the Earth WordNet 3.0 & Open English WordNet

Any considerable and connected part of a space or surface; specifically, a tract of land or sea of considerable but indefinite extent; a country; a district; in a broad sense, a place without special reference to location or extent but viewed as an entity for geographical, social or cultural reasons. Wiktionary

Any considerable and connected part of a space or surface. Wiktionary (translation)