Turkestan vs geographical area

Turkestan and geographical area both are nouns.

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

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