Asia vs Afghanistan

Asia and Afghanistan both are nouns.

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

Asia (noun)	Afghanistan (noun)
the nations of the Asian continent collectively	a mountainous landlocked country in central Asia; bordered by Iran to the west and Russia to the north and Pakistan to the east and south
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