Dialects of Serbo-Croatian

The dialects of Serbo-Croatian include the vernacular forms and standardized sub-dialect forms of Serbo-Croatian as a whole or as part of its standard varieties: Bosnian, Croatian, Montenegrin, and Serbian. They are part of the dialect continuum of South Slavic languages that joins through the transitional Torlak dialects the Macedonian dialects to the south, Bulgarian dialects to the southeast and Slovene dialects to the northwest.

Source: Wikipedia — Dialects of Serbo-Croatian (CC BY-SA 4.0)