Kingdom of Saudi Arabia vs Asian nation

Kingdom of Saudi Arabia and Asian nation both are nouns.

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

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