noun

• 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.
• An administrative subdivision of a city, a territory, a country.
• (historical) Such a division of the city of Rome and of the territory about Rome, of which the number varied at different times; a district, quarter, or ward.
• An administrative subdivision of the European Union.
• A subnational region of Chile; equivalent to province.
• A subprovincial region of Quebec; the primary level subdivision; a prefecture.
• (figuratively) The inhabitants of a region or district of a country.
• (anatomy) A place in or a part of the body in any way indicated.
• An approximate range.
• (obsolete) Place; rank; station; dignity.
• (obsolete) The space from the earth's surface out to the orbit of the moon: properly called the elemental region.
• (Ontario) Ellipsis of regional municipality; a county-level municipality.
• Ellipsis of administrative region. [A type of region in some countries.]