geographical region vs Andalucia

geographical region and Andalucia both are nouns.

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

geographical region (noun)	Andalucia (noun)
a demarcated area of the Earth	a region in southern Spain on the Atlantic and the Mediterranean; formerly a center of Moorish civilization