Caloosahatchee vs river

Caloosahatchee and river both are nouns.

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

Caloosahatchee (noun)	river (noun)
a river in southern Florida that flows westerly to the Gulf of Mexico; forms the western end of the Cross-Florida Waterway	a large natural stream of water (larger than a creek)