The meaning of KIDDUSH is a ceremonial blessing pronounced over wine or bread in a Jewish home or synagogue on a holy day (such as the Sabbath).
Kiddush, Jewish benediction and prayer recited over a cup of wine before the meal on the eve of the Sabbath or of a festival. Some congregations recite the Kiddush at the end of the Friday evening service in the synagogue, except on the eve of Passover,