Kurdistan vs geographical region

Kurdistan and geographical region both are nouns.

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

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