Africa vs Madagascar

Africa and Madagascar both are nouns.

Word	Noun	Adjective	Verb	Adverb
Africa	Yes	No	No	No
Madagascar	Yes	No	No	No

Africa (noun)	Madagascar (noun)
the second largest continent; located to the south of Europe and bordered to the west by the South Atlantic and to the east by the Indian Ocean	a republic on the island of Madagascar; achieved independence from France in 1960
	an island in the Indian Ocean off the southeastern coast of Africa; the 4th largest island in the world