Crna Gora vs geographical region

Crna Gora and geographical region both are nouns.

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

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