river vs Saone

river and Saone both are nouns.

Word	Noun	Adjective	Verb	Adverb
river	Yes	No	No	No
Saone	Yes	No	No	No

river (noun)	Saone (noun)
a large natural stream of water (larger than a creek)	a river in eastern France; rises in Lorraine and flows south to become the chief tributary of the Rhone