geographical region vs Mongolia

geographical region and Mongolia both are nouns.

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

geographical region (noun)	Mongolia (noun)
a demarcated area of the Earth	a landlocked socialist republic in central Asia
	a vast region in Asia including the Mongolian People's Republic and China's Inner Mongolia