Europe vs Portuguese Republic

Europe and Portuguese Republic both are nouns.

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

Europe (noun)	Portuguese Republic (noun)
an international organization of European countries formed after World War II to reduce trade barriers and increase cooperation among its members	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)
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