Italian Republic vs River Adige

Italian Republic and River Adige both are nouns.

Word	Noun	Adjective	Verb	Adverb
Italian Republic	Yes	No	No	No
River Adige	Yes	No	No	No

Italian Republic (noun)	River Adige (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 river in northern Italy that flows southeast into the Adriatic Sea