geographical area vs Nubia

geographical area and Nubia both are nouns.

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

geographical area (noun)	Nubia (noun)
a demarcated area of the Earth	an ancient region of northeastern Africa (southern Egypt and northern Sudan) on the Nile; much of Nubia is now under Lake Nasser