African nation vs Republic of Botswana

African nation and Republic of Botswana both are nouns.

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

African nation (noun)	Republic of Botswana (noun)
any one of the countries occupying the African continent	a landlocked republic in south-central Africa that became independent from British control in the 1960s