Kan River vs river

Kan River and river both are nouns.

Word	Noun	Adjective	Verb	Adverb
Kan River	Yes	No	No	No
river	Yes	No	No	No

Kan River (noun)	river (noun)
a river in southeastern China that flows generally north into the Chang Jiang to the north of Nanchang	a large natural stream of water (larger than a creek)