Europe vs Holy Roman Empire

Europe and Holy Roman Empire both are nouns.

Word	Noun	Adjective	Verb	Adverb
Europe	Yes	No	No	No
Holy Roman Empire	Yes	No	No	No

Europe (noun)	Holy Roman Empire (noun)
an international organization of European countries formed after World War II to reduce trade barriers and increase cooperation among its members	a political entity in Europe that began with the papal coronation of Otto I as the first emperor in 962 and lasted until 1806 when it was dissolved by Napoleon
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