geographical region vs Kurdistan

geographical region and Kurdistan both are nouns.

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

geographical region (noun)	Kurdistan (noun)
a demarcated area of the Earth	an oriental rug woven by Kurds that is noted for fine colors and durability
	an extensive geographical region in the Middle East to the south of the Caucasus