Africa vs Namibia

Africa and Namibia both are nouns.

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

Africa (noun)	Namibia (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 in southwestern Africa on the south Atlantic coast (formerly called South West Africa); achieved independence from South Africa in 1990; the greater part of Namibia forms part of the high Namibian plateau of South Africa