Europe vs Elbe River

Europe and Elbe River both are nouns.

Word	Noun	Adjective	Verb	Adverb
Europe	Yes	No	No	No
Elbe River	Yes	No	No	No

Europe (noun)	Elbe River (noun)
an international organization of European countries formed after World War II to reduce trade barriers and increase cooperation among its members	a river in central Europe that arises in northwestern Czechoslovakia and flows northward through Germany to empty into the North Sea
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