Africa vs Niger

Africa and Niger both are nouns.

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

Africa (noun)	Niger (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 landlocked republic in West Africa; gained independence from France in 1960; most of the country is dominated by the Sahara Desert
	an African river; flows into the South Atlantic