African nation vs Republic of Djibouti

African nation and Republic of Djibouti both are nouns.

Word	Noun	Adjective	Verb	Adverb
African nation	Yes	No	No	No
Republic of Djibouti	Yes	No	No	No

African nation (noun)	Republic of Djibouti (noun)
any one of the countries occupying the African continent	a country in northeastern Africa on the Somali peninsula; formerly under French control but became independent in 1997