Chakavian
Chakavian or Čakavian , , ( , proper name: "čakavica" or "čakavština" , own name: "čokovski, čakavski, čekavski") is a dialect of the Serbo-Croatian language spoken by a minority of Croats. It has a low mutual intelligibility with Shtokavian. There is much internal diversity, to the point where intelligibility between the northern and southern varieties of Chakavian is low. All three main Serbo-Croatian dialects are named after their most common word for "what?", which in Čakavian is "ča" or "ca". Chakavian is spoken mainly in the northeastern Adriatic: in Istria, Kvarner Gulf, in most Adriatic islands, and in the interior valley of Gacka, more sporadically in the Dalmatian littoral and central Croatia.
Serbian Cyrillic alphabet
Cyrillic is in official use in Serbia, Montenegro and Bosnia and Herzegovina. Although the Bosnian language "officially accept[s] both alphabets", the Latin script is almost always used in the Federation of Bosnia and Herzegovina, whereas Cyrillic is in everyday use in Republika Srpska (and is used only by the Serbs in the country). The Serbian language in Croatia is officially recognized as a minority language, however, the use of Cyrillic in bilingual signs has sparked protests and vandalism.