Republic of Nauru vs country

Republic of Nauru and country both are nouns.

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

Republic of Nauru (noun)	country (noun)
an island republic on Nauru Island; phosphate exports support the economy	a politically organized body of people under a single government
	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)