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.
Arbaah minim
Literally, “four species.” The Torah specifies four species to bring together on Sukkot. The four species are: lulav (branches of palm trees), etrog (citron), hadasim (myrtle branches), and aravot (willows) (Leviticus 23:40).