Nubia vs geographic area

Nubia and geographic area both are nouns.

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

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