South America vs Brazil

South America and Brazil both are nouns.

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

South America (noun)	Brazil (noun)
the nations of the South American continent collectively	the largest Latin American country and the largest Portuguese speaking country in the world; located in the central and northeastern part of South America; world's leading coffee exporter
a continent in the western hemisphere connected to North America by the Isthmus of Panama