Heart of Dixie vs U.S.A.

Heart of Dixie and U.S.A. both are nouns.

Word	Noun	Adjective	Verb	Adverb
Heart of Dixie	Yes	No	No	No
U.S.A.	Yes	No	No	No

Heart of Dixie (noun)	U.S.A. (noun)
a state in the southeastern United States on the Gulf of Mexico; one of the Confederate states during the American Civil War	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