Republic of Equatorial Guinea vs African country

Republic of Equatorial Guinea and African country both are nouns.

Word	Noun	Adjective	Verb	Adverb
Republic of Equatorial Guinea	Yes	No	No	No
African country	Yes	No	No	No

Republic of Equatorial Guinea (noun)	African country (noun)
a country of west central Africa (including islands in the Gulf of Guinea); became independent from Spain in 1968	any one of the countries occupying the African continent