Asian nation vs Islamic Republic of Iran

Asian nation and Islamic Republic of Iran both are nouns.

Word	Noun	Adjective	Verb	Adverb
Asian nation	Yes	No	No	No
Islamic Republic of Iran	Yes	No	No	No

Asian nation (noun)	Islamic Republic of Iran (noun)
any one of the nations occupying the Asian continent	a theocratic Islamic republic in the Middle East in western Asia; Iran was the core of the ancient empire that was known as Persia until 1935; rich in oil