campaign vs Africa

campaign and Africa both are nouns.

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

campaign (noun)	Africa (noun)
several related operations aimed at achieving a particular goal (usually within geographical and temporal constraints)	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
an overland journey by hunters (especially in Africa)
a series of actions advancing a principle or tending toward a particular end
a race between candidates for elective office

campaign (verb)	Africa (verb)
go on a campaign; go off to war
run, stand, or compete for an office or a position
exert oneself continuously, vigorously, or obtrusively to gain an end or engage in a crusade for a certain cause or person; be an advocate for