Irish Republic vs Europe

Irish Republic and Europe both are nouns.

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

Irish Republic (noun)	Europe (noun)
a republic consisting of 26 of 32 counties comprising the island of Ireland; achieved independence from the United Kingdom in 1921	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