Argentina vs Argentine Republic

Argentina and Argentine Republic both are nouns.

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

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

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

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