Answer:
Kiddush (or Kiddish) is a blessing recited over a cup of wine before the evening and morning meal on the Jewish Sabbath and major festivals.
Kiddush acknowledges the sanctity of the day. It is usually performed by the head of the household, but it may involve all family members. After the recitation, each person sips wine from the cup, or the one who recited may pour from his cup into individual cups for each participant.
Traditionally, after Kiddush has been recited, all members perform a ritual washing of hands (Called Netilat Yadayim), after which the blessing is made over the bread.