geographical region vs Crna Gora

geographical region and Crna Gora both are nouns.

Word	Noun	Adjective	Verb	Adverb
geographical region	Yes	No	No	No
Crna Gora	Yes	No	No	No

geographical region (noun)	Crna Gora (noun)
a demarcated area of the Earth	a former country bordering on the Adriatic Sea; now part of the Union of Serbia and Montenegro