Asia vs Iran

Asia and Iran both are nouns.

Word	Noun	Adjective	Verb	Adverb
Asia	Yes	No	No	No
Iran	Yes	No	No	No

Asia (noun)	Iran (noun)
the nations of the Asian continent collectively	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
the largest continent with 60% of the earth's population; it is joined to Europe on the west to form Eurasia; it is the site of some of the world's earliest civilizations