The Gambia vs Africa

The Gambia and Africa both are nouns.

Word	Noun	Adjective	Verb	Adverb
The Gambia	Yes	No	No	No
Africa	Yes	No	No	No

The Gambia (noun)	Africa (noun)
a narrow republic surrounded by Senegal in West 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