West vs South America

West and South America both are nouns.

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

West (noun)	South America (noun)
the countries of (originally) Europe and (now including) North America and South America	the nations of the South American continent collectively
the region of the United States lying to the west of the Mississippi River	a continent in the western hemisphere connected to North 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)