1.Definition: 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", "The realm of the occult"

Related Noun(s):realm

Category: General

2.Definition: a large indefinite location on the surface of the Earth

"Penguins inhabit the polar regions"

Category: Places

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

"In the abdominal region"

Related Noun(s):area

Category: General

4.Definition: 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"

Related Noun(s):neighborhood

Category: General

5.Definition: the extended spatial location of something

"The farming regions of France", "Religions in all parts of the world", "Regions of outer space"

Related Noun(s):part

Category: Places