East vs geographical region

East and geographical region both are nouns.

Word	Noun	Adjective	Verb	Adverb
East	Yes	No	No	No
geographical region	Yes	No	No	No

East (noun)	geographical region (noun)
the countries of Asia	a demarcated area of the Earth
the region of the United States lying to the north of the Ohio River and to the east of the Mississippi River