Guinea vs African country

Guinea and African country both are nouns.

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

Guinea (noun)	African country (noun)
a republic in western Africa on the Atlantic; formerly a French colony; achieved independence from France in 1958	any one of the countries occupying the African continent
(ethnic slur) offensive term for a person of Italian descent