Czech vs European

Czech and European both are nouns.

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

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

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

Czech (noun)	European (noun)
the Slavic language of Czechs	a native or inhabitant of Europe
a native or inhabitant of the former republic of Czechoslovakia
a native of inhabitant of the Czech Republic

Czech (adjective)	European (adjective)
of or relating to Czechoslovakia or its people or their language	of or relating to or characteristic of Europe or the people of Europe