N'ilah
Literally, “locking.” The service that concludes Yom Kippur. The name alludes to the metaphorical locking of the heavenly gates at the end of the day.
Shabbat Shuvah
"Sabbath of Return;" the Shabbat (sabbath) between the holidays of Rosh HaShanah and Yom Kippur. A special haftarah is read and traditionally the rabbi gives a sermon related to repentance.
shofar
Ram’s horn most commonly blown throughout the month of Elul and during the High Holiday season.
Selichot
"Forgiveness;" special penitential prayers recited during Elul and the High Holidays.
T'shuvah
Vidui
"Confession;" liturgical prayer recited throughout Yom Kippur; confessional said before death.
Yizkor
"Remember;" memorial service held on Yom Kippur and on the last day of Pesach, Shavout, and Sukkot.
Yom Kippur
"Day of Atonement;" holiest day of the Jewish year, which includes a focus on prayer, repentance and fasting.
Yom Tov
"Good Day;" the term, often pronounced as yuntiff (Yiddish) has come to mean "holiday;" "Good Yuntiff" is often used a holiday greeting.