Source : Webster's Revised Unabridged Dictionary (1913)

Czech \Czech\ (ch?k; 204), n.
   1. One of the Czechs.

   2. The language of the Czechs (often called Bohemian), the
      harshest and richest of the Slavic languages.

Czechs \Czechs\ (ch?ks), n. pl.; sing. {Czech}. [Named after
   their chieftain, Czech.] (Ethnol.)
   The most westerly branch of the great Slavic family of
   nations, numbering now more than 6,000,000, and found
   principally in Bohemia and Moravia.

Source : WordNet®

Czech
     adj : of or relating to Czechoslovakia or its people or their
           language; "The Czech border"; "Czechoslovak
           nationalists"; "The Czechoslovakian population" [syn: {Czechoslovakian}]

Czech
     n 1: a native of inhabitant of the Czech Republic
     2: a native or inhabitant of the former republic of
        Czechoslovakia [syn: {Czechoslovakian}, {Czechoslovak}]
     3: the Slavic language of the Czech people