Yes, BCMS and Slovenian and Macedonian/Bulgarian are generally regarded as different languages, but historically the region had dialect continuums and mutual in

Yes, BCMS and Slovenian and Macedonian/Bulgarian are generally regarded as different languages, but historically the region had dialect continuums and mutual intelligibility can go across those languages. The Torlak dialect of Serbian is so transitional to Bulgarian/Macedonian that it could fairly be called a dialect of the latter. Even outside that dialect, it's not at all unusual to see Macedonians and Serbs in general converse, each person speaking his own language. Similarly, the Croatian dialect spoken in the northwest of Croatia (which has become increasingly fashionable after independence) is transitional to Slovenian and there is greater mutual intelligibility than with standard Croatian.