Occident vs region

Occident and region both are nouns.

Word	Noun	Adjective	Verb	Adverb
Occident	Yes	No	No	No
region	Yes	No	No	No

Occident (noun)	region (noun)
the countries of (originally) Europe and (now including) North America and South America	a part of an animal that has a special function or is supplied by a given artery or nerve
	a knowledge domain that you are interested in or are communicating about
	the extended spatial location of something
	a large indefinite location on the surface of the Earth
	the approximate amount of something (usually used prepositionally as in `in the region of')