Twin Falls vs USA

Twin Falls and USA both are nouns.

Word	Noun	Adjective	Verb	Adverb
Twin Falls	Yes	No	No	No
USA	Yes	No	No	No

Twin Falls (noun)	USA (noun)
a town on the Snake River in south central Idaho near the Twin Falls	the army of the United States of America; the agency that organizes and trains soldiers for land warfare
a waterfall in the Snake River in southern Idaho	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