U.S.A. vs North Star State

U.S.A. and North Star State both are nouns.

Word	Noun	Adjective	Verb	Adverb
U.S.A.	Yes	No	No	No
North Star State	Yes	No	No	No

U.S.A. (noun)	North Star State (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 midwestern state