Amur vs Amur River

Amur and Amur River both are nouns.

Word	Noun	Adjective	Verb	Adverb
Amur	Yes	No	No	No
Amur River	Yes	No	No	No

As nouns, Amur and Amur River are synonyms defined as:

Amur and Amur River: an Asian river between China and Russia; flows into the Sea of Okhotsk

Other synonyms of Amur include Heilong, Heilong Jiang.

Amur (noun)	Amur River (noun)
an Asian river between China and Russia; flows into the Sea of Okhotsk	an Asian river between China and Russia; flows into the Sea of Okhotsk