region vs Doris

region and Doris both are nouns.

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

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