Italia vs Italy

Italia and Italy both are nouns.

Word	Noun	Adjective	Verb	Adverb
Italia	Yes	No	No	No
Italy	Yes	No	No	No

As nouns, Italia and Italy are synonyms defined as:

Italia and Italy: a republic in southern Europe on the Italian Peninsula; was the core of the Roman Republic and the Roman Empire between the 4th century BC and the 5th century AD

Other synonyms of Italia include Italian Republic.

Italia (noun)	Italy (noun)
a republic in southern Europe on the Italian Peninsula; was the core of the Roman Republic and the Roman Empire between the 4th century BC and the 5th century AD	a republic in southern Europe on the Italian Peninsula; was the core of the Roman Republic and the Roman Empire between the 4th century BC and the 5th century AD