European Union vs Luxembourg

European Union and Luxembourg both are nouns.

Word	Noun	Adjective	Verb	Adverb
European Union	Yes	No	No	No
Luxembourg	Yes	No	No	No

European Union (noun)	Luxembourg (noun)
an international organization of European countries formed after World War II to reduce trade barriers and increase cooperation among its members	a grand duchy (a constitutional monarchy) landlocked in northwestern Europe between France and Belgium and Germany; an international financial center
	the capital and largest city of Luxembourg