Zambia vs African country

Zambia and African country both are nouns.

Word	Noun	Adjective	Verb	Adverb
Zambia	Yes	No	No	No
African country	Yes	No	No	No

Zambia (noun)	African country (noun)
a republic in central Africa; formerly controlled by Great Britain and called Northern Rhodesia until it gained independence within the commonwealth in 1964	any one of the countries occupying the African continent