Asian nation vs Saudi Arabia

Asian nation and Saudi Arabia both are nouns.

Word	Noun	Adjective	Verb	Adverb
Asian nation	Yes	No	No	No
Saudi Arabia	Yes	No	No	No

Asian nation (noun)	Saudi Arabia (noun)
any one of the nations occupying the Asian continent	an absolute monarchy occupying most of the Arabian Peninsula in southwest Asia; vast oil reserves dominate the economy