river vs New River

river and New River both are nouns.

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

river (noun)	New River (noun)
a large natural stream of water (larger than a creek)	a river in the southeastern United States that flows northward from North Carolina to West Virginia where it empties into the Kanawha River