Europe vs Great Britain

Europe and Great Britain both are nouns.

Word	Noun	Adjective	Verb	Adverb
Europe	Yes	No	No	No
Great Britain	Yes	No	No	No

Europe (noun)	Great Britain (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 England and Scotland and Wales
the nations of the European continent collectively	a monarchy in northwestern Europe occupying most of the British Isles; divided into England and Scotland and Wales and Northern Ireland; `Great Britain' is often used loosely to refer to the United Kingdom
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