country vs Republic of Fiji

country and Republic of Fiji both are nouns.

Word	Noun	Adjective	Verb	Adverb
country	Yes	No	No	No
Republic of Fiji	Yes	No	No	No

country (noun)	Republic of Fiji (noun)
a politically organized body of people under a single government	an independent state within the British Commonwealth located on the Fiji Islands
the people who live in a nation or country
the territory occupied by a nation
an area outside of cities and towns
a particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography)