Djibouti vs capital of Djibouti

Djibouti and capital of Djibouti both are nouns.

Word	Noun	Adjective	Verb	Adverb
Djibouti	Yes	No	No	No
capital of Djibouti	Yes	No	No	No

As nouns, Djibouti and capital of Djibouti are synonyms defined as:

Djibouti and capital of Djibouti: port city on the Gulf of Aden; the capital and largest city of Djibouti

Djibouti (noun)	capital of Djibouti (noun)
a country in northeastern Africa on the Somali peninsula; formerly under French control but became independent in 1997	port city on the Gulf of Aden; the capital and largest city of Djibouti
port city on the Gulf of Aden; the capital and largest city of Djibouti