Slovene language
Outside Croatia's northernmost regions, Kajkavian is also spoken in Austrian Burgenland and a number of enclaves in Hungary along the Austrian and Croatian border and in Romania. Although speakers of Kajkavian are primarily Croats, and Kajkavian is generally considered a dialect of Standard Croatian, its closest relative is the Slovene language (particularly the Pannonian and Styrian dialects of Slovene), followed by Chakavian and then Shtokavian. Kajkavian is part of the South Slavic dialect continuum, adjoining the Slovene language (Slovenia) and Chakavian dialects (Croatia).