geographical area vs Turkestan

geographical area and Turkestan both are nouns.

Word	Noun	Adjective	Verb	Adverb
geographical area	Yes	No	No	No
Turkestan	Yes	No	No	No

geographical area (noun)	Turkestan (noun)
a demarcated area of the Earth	a historical region of central Asia that was a center for trade between the East and the West