Czechoslovak
political sociolinguistic concept used in Czechoslovakia in 1920–1938 for the definition of the state language of the country
en-GB/ˌt͡ʃɛkəʊˈsləʊvæk/
en-US/ˈt͡ʃɛkəˈsloʊvæk/
political sociolinguistic concept used in Czechoslovakia in 1920–1938 for the definition of the state language of the country