Austria-Hungary vs Europe

Austria-Hungary and Europe both are nouns.

Word	Noun	Adjective	Verb	Adverb
Austria-Hungary	Yes	No	No	No
Europe	Yes	No	No	No

Austria-Hungary (noun)	Europe (noun)
a geographical area in central and eastern Europe; broken into separate countries at the end of World War I	an international organization of European countries formed after World War II to reduce trade barriers and increase cooperation among its members
	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