Argentine Republic vs Argentina

Argentine Republic and Argentina both are nouns.

Word	Noun	Adjective	Verb	Adverb
Argentine Republic	Yes	No	No	No
Argentina	Yes	No	No	No

As nouns, Argentine Republic and Argentina are synonyms defined as:

Argentine Republic and Argentina: a republic in southern South America; second largest country in South America

Argentine Republic (noun)	Argentina (noun)
a republic in southern South America; second largest country in South America	type genus of the Argentinidae: argentines
	a republic in southern South America; second largest country in South America