- a member of the most westerly branch of the Slavs, comprising the Bohemians, or Czechs proper, and, sometimes, the Moravians.
- the language of Bohemia and Moravia, a Slavic language similar to Slovak.
- (loosely) Czechoslovak.
- Also Czech·ish.
- of or relating to the former Czechoslovakia, its people, or their language.
- of or relating to the Czech Republic, its people, or their language.
- Czechoslovakia.
- of, relating to, or characteristic of the Czech Republic, its people, or its language
- of, relating to, or characteristic of Bohemia and Moravia, their people, or their language
- (loosely) of, relating to, or characteristic of the former Czechoslovakia or its people
- the official language of the Czech Republic, belonging to the West Slavonic branch of the Indo-European family; also spoken in Slovakia. Czech and Slovak are closely related and mutually intelligible
- a native or inhabitant of the Czech Republic
- a native or inhabitant of Bohemia or Moravia
- (loosely) a native, inhabitant, or citizen of the former Czechoslovakia