Asia vs Asian

Asia and Asian both are nouns.

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

Asia (noun)	Asian (noun)
the nations of the Asian continent collectively	a native or inhabitant of Asia
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

Asia (adjective)	Asian (adjective)
	of or relating to or characteristic of Asia or the peoples of Asia or their languages or culture