region

noun

1. 1

   a part of an animal that has a special function or is supplied by a given artery or nerve

   in the abdominal region

2. 2

   a knowledge domain that you are interested in or are communicating about

   it was a limited realm of discourse

   here we enter the region of opinion

3. 3

   the extended spatial location of something

   the farming regions of France

   religions in all parts of the world

4. 4

   a large indefinite location on the surface of the Earth

   penguins inhabit the polar regions

5. 5

   the approximate amount of something (usually used prepositionally as in `in the region of')

   it was going to take in the region of two or three months to finish the job

   the price is in the neighborhood of $100