West vs North America

West and North America both are nouns.

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

West (noun)	North America (noun)
the countries of (originally) Europe and (now including) North America and South America	the nations of the North American continent collectively
the region of the United States lying to the west of the Mississippi River	a continent (the third largest) in the western hemisphere connected to South America by the Isthmus of Panama
English painter (born in America) who became the second president of the Royal Academy (1738-1820)
United States film actress (1892-1980)
British writer (born in Ireland) (1892-1983)