Republic of Burundi vs African country

Republic of Burundi and African country both are nouns.

Word	Noun	Adjective	Verb	Adverb
Republic of Burundi	Yes	No	No	No
African country	Yes	No	No	No

Republic of Burundi (noun)	African country (noun)
a landlocked republic in east central Africa on the northeastern shore of Lake Tanganyika	any one of the countries occupying the African continent