Glossary beginning with U
The festival for a boy's first haircut. Among many Jews, a boy’s hair is often not cut until his third birthday. The haircut is then performed amidst festivities, called an upsherin, usually on Lag B'Omer. Boys are usually given their first tzitzit on their third birthday, as well. Today, some families hold an upsherin for girls, and some families give their daughters tzitzit.
Lit. Guests (Aramaic)
Biblical "guests" invited into the sukkah on each of the seven nights of the holiday. While the traditional ushpizin were all male, a new custom has been created, inviting female guests (ushpizot) as well. The seven ushpizin are Abraham, Isaac, Jacob, Joseph, Moses, Aaron, and David. The seven female ushpizot are Sarah, Rebecca, Rachel, Leah, Miriam, Abigail, and Esther.