<p><strong>Noun:</strong></p><ul><li>A member of the most westerly branch of the Slavs, comprising the Bohemians, or Czechs proper, and, sometimes, the Moravians.</li><li>The language of Bohemia and Moravia, a Slavic language similar to Slovak.</li><li>(Loosely) Czechoslovak.</li></ul><p><strong>Adjective:</strong></p><ul><li>Also Czechish.</li><li>Of or relating to the former Czechoslovakia, its people, or their language.</li><li>Of or relating to the Czech Republic, its people, or their language.</li></ul>