Low Countries vs Europe

Low Countries and Europe both are nouns.

Word	Noun	Adjective	Verb	Adverb
Low Countries	Yes	No	No	No
Europe	Yes	No	No	No

Low Countries (noun)	Europe (noun)
the lowland region of western Europe on the North Sea: Belgium and Luxembourg and the Netherlands	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