- Czech, Czechoslovakian - of or relating to Czechoslovakia or its people or their language; "The Czech border"; "Czechoslovak nationalists"; "The Czechoslovakian population"
 
- Czech - a native of inhabitant of the Czech Republic
 --1 is a kind of European
 --1 is a member of Czech Republic
- Czechoslovakian, Czechoslovak, Czech - a native or inhabitant of the former republic of Czechoslovakia
 --2 is a kind of European
 --2 is a member of Czechoslovakia
- Czech - the Slavic language of the Czech people
 --3 is a kind of Slavic, Slavic language, Slavonic, Slavonic language
 
- Czechoslovakian, Czechoslovak, Czech - a native or inhabitant of the former republic of Czechoslovakia