U.S. vs barrio

U.S. and barrio both are nouns.

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

U.S. (noun)	barrio (noun)
the executive and legislative and judicial branches of the federal government of the United States	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)