U.S. vs New River

U.S. and New River both are nouns.

Word	Noun	Adjective	Verb	Adverb
U.S.	Yes	No	No	No
New River	Yes	No	No	No

U.S. (noun)	New River (noun)
the executive and legislative and judicial branches of the federal government of the United States	a river in the southeastern United States that flows northward from North Carolina to West Virginia where it empties into the Kanawha River
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