barrio vs U.S.A.

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

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

barrio (noun)	U.S.A. (noun)
an urban area in a Spanish-speaking country	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 Spanish-speaking quarter in a town or city (especially in the United States)