Ergun He vs Argun River

Ergun He and Argun River both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ergun He	Yes	No	No	No
Argun River	Yes	No	No	No

As nouns, Ergun He and Argun River are synonyms defined as:

Ergun He and Argun River: 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

Other synonyms of Ergun He include Argun.

Ergun He (noun)	Argun River (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	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