North America vs Central America

North America and Central America both are nouns.

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

North America (noun)	Central America (noun)
the nations of the North American continent collectively	the nations of Central America collectively
a continent (the third largest) in the western hemisphere connected to South America by the Isthmus of Panama	the isthmus joining North America and South America; extends from the southern border of Mexico to the northern border of Colombia