Russia vs Amur River

Russia and Amur River both are nouns.

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

Russia (noun)	Amur River (noun)
a former communist country in eastern Europe and northern Asia; established in 1922; included Russia and 14 other soviet socialist republics (Ukraine and Byelorussia and others); officially dissolved 31 December 1991	an Asian river between China and Russia; flows into the Sea of Okhotsk
formerly the largest Soviet Socialist Republic in the USSR occupying eastern Europe and northern Asia
a former empire in eastern Europe and northern Asia created in the 14th century with Moscow as the capital; powerful in the 17th and 18th centuries under Peter the Great and Catherine the Great when Saint Petersburg was the capital; overthrown by revolution in 1917
a federation in northeastern Europe and northern Asia; formerly Soviet Russia; since 1991 an independent state