Bosnian (Bosnian) and Montenegrin (Montenegrin) are two of the four national standards of the Štokavian South Slavic language commonly referred to as BCMS (Bosnian–Croatian–Montenegrin–Serbian). Everyday speech is largely mutually intelligible; the standards differ in orthography, lexical preferences, and official status.
Bosanski
The Sarajevo-based standard of Bosnian. A Štokavian-based BCMS standard, distinguished by retention of Turkish, Arabic, and Persian loanwords from Ottoman rule and the use of both Latin and Cyrillic scripts.
Crnogorski
The most recently codified BCMS national standard, declared official in Montenegro in 2007. Distinguished from Serbian by the recognition of two additional Montenegrin-specific letters and a number of lexical preferences.
Open Bosnian and Montenegrin individually, or read about the other BCMS standards.