Region refers to an area or division, especially part of a country or the world having definable characteristics but not always fixed boundaries.
In geography, a region can be defined by physical characteristics, human impact characteristics, or the interaction of humanity and the environment.
The term "region" also refers to:
1. An administrative division in many countries
2. A part of the body in anatomy
3. A specific area in computer memory
4. A climatic zone in meteorology