Doris vs region

Doris and region both are nouns.

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

Doris (noun)	region (noun)
a small region of ancient Greece where the Doric dialect was spoken	a part of an animal that has a special function or is supplied by a given artery or nerve
(Greek mythology) wife of Nereus and mother of the Nereids	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')