Frank vs European

Frank and European both are nouns.

Word	Noun	Adjective	Verb	Adverb
Frank	Yes	No	No	No
European	Yes	Yes	No	No

As nouns, European is a hypernym of Frank; that is, European is a word with a broader meaning than Frank:

Frank: a member of the ancient Germanic peoples who spread from the Rhine into the Roman Empire in the 4th century
European: a native or inhabitant of Europe

Frank (noun)	European (noun)
a member of the ancient Germanic peoples who spread from the Rhine into the Roman Empire in the 4th century	a native or inhabitant of Europe

Frank (adjective)	European (adjective)
	of or relating to or characteristic of Europe or the people of Europe