Bulgarian is a favored South Slavic language native to Bulgaria, Serbia, Greece, Macedonia, Ukraine, and Turkey, with about eight to nine million speakers. Bulgaria has even chosen it as its official language, meaning that most Bulgarians use it for daily communication both at home and at their workplaces.
One of the interesting facts about this language is that its longest word comes with 39 letters. It is pretty hard to pronounce, especially for non-natives. Those interested in mastering Bulgarian need to familiarize themselves with more facts about it. For instance, it has nine tenses, and its modern form has about 200,000 words.