The Slavonic languages are a group of related languages that belong to the Indo-European language family. They are primarily spoken in Eastern Europe and parts of Central Europe, with major branches including West Slavic, East Slavic, and South Slavic languages. Notable languages in this family include Polish, Russian, Czech, and Bulgarian. These languages share common linguistic features, such as similar vocabulary and grammar structures, but they also exhibit significant regional variations. The Slavonic languages have a rich literary tradition and are used by millions of speakers, contributing to the cultural diversity of the regions where they are spoken.