river vs Tallapoosa

river and Tallapoosa both are nouns.

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

river (noun)	Tallapoosa (noun)
a large natural stream of water (larger than a creek)	river that rises in northwestern Georgia and flows southwest through central Alabama to join the Coosa River near Montgomery and form the Alabama River