Europe vs Ireland

Europe and Ireland both are nouns.

Word	Noun	Adjective	Verb	Adverb
Europe	Yes	No	No	No
Ireland	Yes	No	No	No

Europe (noun)	Ireland (noun)
an international organization of European countries formed after World War II to reduce trade barriers and increase cooperation among its members	an island comprising the republic of Ireland and Northern Ireland
the nations of the European continent collectively	a republic consisting of 26 of 32 counties comprising the island of Ireland; achieved independence from the United Kingdom in 1921
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