Central America vs America

Central America and America both are nouns.

Word	Noun	Adjective	Verb	Adverb
Central America	Yes	No	No	No
America	Yes	No	No	No

Central America (noun)	America (noun)
the nations of Central America collectively	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
the isthmus joining North America and South America; extends from the southern border of Mexico to the northern border of Colombia	North America and South America and Central America