Serbo-Croatian is a South Slavic language with four national standards. The Eastern Herzegovinian Neo-Shtokavian dialect forms the basis for Bosnian, Croatian, Montenegrin, and Serbian (the four national standards).
Standard Serbo-Croatian has 30 phonemes according to the traditional analysis: 25 consonants and 5 vowels (or 10, if long vowels are analysed as distinct phonemes). It features four types of pitch accent, although it is not the characteristics of all dialects.