Definition of "Europe" :

noun: the nations of the European continent collectively

"The Marshall Plan helped Europe recover from World War II."

noun: an international organization of European countries formed after World War II to reduce trade barriers and increase cooperation among its members

"He tried to take Britain into the Europen Union."

noun: 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