Argun River vs Asia

Argun River and Asia both are nouns.

Word	Noun	Adjective	Verb	Adverb
Argun River	Yes	No	No	No
Asia	Yes	No	No	No

Argun River (noun)	Asia (noun)
a river in eastern Asia that arises in China and flows northeast along the border between China and Russia to become a tributary of the Amur River	the nations of the Asian continent collectively
	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