America vs American state

America and American state both are nouns.

Word	Noun	Adjective	Verb	Adverb
America	Yes	No	No	No
American state	Yes	No	No	No

America (noun)	American state (noun)
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	one of the 50 states of the United States
North America and South America and Central America