"weeks", and marks the completion of the seven-week counting period between Passover and Shavuot. The word Shavuot also means "oaths," because on this day God swore eternal devotion to the Jewish people, who in turn pledged everlasting loyalty to Him.
As with any Jewish holiday, the festival starts on the evening before the first day.
On both the first and the second evening, women and girls light holiday candles to usher in the holiday.
On the first night of Shavuot, people often stay up all night learning Torah. All men, women and children attend the synagogue on the first day of Shavuot to listen to the reading of the Ten Commandments. People eat special meals, including diary, and they are not allowed to work at all.
On the second day of Shavuot, the Yizkor memorial service is recited.