U.S.A. vs Louisiana

U.S.A. and Louisiana both are nouns.

Word	Noun	Adjective	Verb	Adverb
U.S.A.	Yes	No	No	No
Louisiana	Yes	No	No	No

U.S.A. (noun)	Louisiana (noun)
North American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776	a state in southern United States on the Gulf of Mexico; one of the Confederate states during the American Civil War