U.S. vs Ohio

U.S. and Ohio both are nouns.

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

U.S. (noun)	Ohio (noun)
the executive and legislative and judicial branches of the federal government of the United States	a midwestern state in north central United States in the Great Lakes region, with capital Columbus
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 river that is formed in western Pennsylvania and flows westward to become a tributary of the Mississippi River