East Africa vs Africa

East Africa and Africa both are nouns.

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

East Africa (noun)	Africa (noun)
a geographical area in eastern Africa	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