Bulgarian ("", [ˈbɤ̞lɡarski ɛˈzik]) is an Indo-European language. It is spoken mainly in Bulgaria and parts of North Macedonia, Serbia, Ukraine and Moldova. The Bulgarian language is similar to the Macedonian and the Serbian languages, which are part of the South Slavic branch of Slavic languages. There are nearly 9 million people in 2011 who use Bulgarian as their main language.