Gila vs river

Gila and river both are nouns.

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

Gila (noun)	river (noun)
a river that rises in western New Mexico and flows westward through southern Arizona to become a tributary of the Colorado River	a large natural stream of water (larger than a creek)