S’firat HaOmer
"Counting of the omer;" An omer is a biblical measurement of grain. The counting of the omer is 49-day period that begins on the second night of Passover during which each day is counted with a blessing. On the 50th day, the Festival of Shavuot is observed.
Tikkun Leil Shavuot
A celebration specific to the holiday of Shavuot, it includes a late-night – or even all-night – study of Torah and Jewish texts that commemorates receiving the Torah at Mount Sinai.
Z’man Matan Torateinu
Literally, “the time of the giving of our Torah.” This refers to the holiday of Shavuot.
(the) Omer
The 49-day period that begins on the second night of Passover and ends on Shavuot.
Shavuot
"Weeks;" festival that commemorates the giving of the Torah to Moses atop Mt. Sinai.
Tu BiShvat
"15th of Shevat;" New Year of the Trees; Jewish Arbor Day, which is a minor festival.
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).