Delaware River vs river

Delaware River and river both are nouns.

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

Delaware River (noun)	river (noun)
a river that rises in the Catskills in southeastern New York and flows southward along the border of Pennsylvania with New York and New Jersey to northern Delaware where it empties into Delaware Bay	a large natural stream of water (larger than a creek)