Yazoo vs Mississippi

Yazoo and Mississippi both are nouns.

Word	Noun	Adjective	Verb	Adverb
Yazoo	Yes	No	No	No
Mississippi	Yes	No	No	No

Yazoo (noun)	Mississippi (noun)
a river that rises in west central Mississippi and flows southwest to empty into the Mississippi River above Vicksburg	a state in the Deep South on the gulf of Mexico; one of the Confederate States during the American Civil War
	a major North American river and the chief river of the United States; rises in northern Minnesota and flows southward into the Gulf of Mexico