continent vs Africa

continent and Africa both are nouns.

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

continent (noun)	Africa (noun)
one of the large landmasses of the earth	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

continent (adjective)	Africa (adjective)
having control over urination and defecation
abstaining from sexual intercourse