Portuguese Republic vs Europe

Portuguese Republic and Europe both are nouns.

Word	Noun	Adjective	Verb	Adverb
Portuguese Republic	Yes	No	No	No
Europe	Yes	No	No	No

Portuguese Republic (noun)	Europe (noun)
a republic in southwestern Europe on the Iberian Peninsula; Portuguese explorers and colonists in the 15th and 16th centuries created a vast overseas empire (including Brazil)	an international organization of European countries formed after World War II to reduce trade barriers and increase cooperation among its members
	the nations of the European continent collectively
	the 2nd smallest continent (actually a vast peninsula of Eurasia); the British use `Europe' to refer to all of the continent except the British Isles