chol hamo-eid
"Secular part of the occasion;" during Passover and Sukkot, the intermediate days of the festival.
etrog
"Citron." Lemon-like fruit used in Sukkot rituals.
hakafah
"encircle, round off, circle around, orbit;" procession of worshippers carrying Torah scrolls that circles the sanctuary; plural hakafot.
lulav
A date palm frond with myrtle and willow sprigs attached; used in Sukkot rituals.
Sh'mini Atzeret
"Eighth day of assembly;" conclusion of Sukkot.
sukkah
"Booth" or "hut;" temporary structure associated with the agricultural festival of Sukkot; plural: sukkot.
Sukkot
Seven-day fall agricultural festival associated with temporary booths or huts.
Tu BiShvat
"15th of Shevat;" New Year of the Trees; Jewish Arbor Day, which is a minor festival.
ushpizin
"Guests" (Aramaic); mythic guests invited to the sukkah.
Yizkor
"Remember;" memorial service held on Yom Kippur and on the last day of Pesach, Shavout, and Sukkot.