This dictionary is the first attempt in Slavic studies to create an encyclopedic dictionary of the traditional and spiritual culture of all Slavic peoples. It sums up more than a century of study of Slavic languages, folklore, mythology, ethnography, and folk art. The dictionary describes in detail, among other things, the folk festive life, family life and rituals of the Slavs. This scientific work is at the same time a fascinating read for a wide range of readers