adloyada

A Purim carnival.

aliyah

immigration to Israel

ascent

"calling to the reading of the Torah" (Glinert)

ascent of the soul of a deceased person to a higher level, as is believed to happen on their yartzeit

avodah

"Literally, 'divine service'" (Eisenberg)

work, generally

the name for a unit at camp in which campers help with such duties as service in the dining hall, laundry, etc.

"Service and worship of God" (Eisenberg)

"A unique part of the Musaf service on Yom Kippur, the Avodah prayers describe the sacrificial ritual in the Temple in ancient Jerusalem on the Day of Atonement" (Eisenberg).

beit knesset

Jewish place of worship; "synagogue" (JPS)

besamim

"Modern Israeli slang for illegal drugs" (JPS).

Spices

"Literally, 'spices.' It almost always refers to the spices in the spice box used for the Havdalah ceremony" (JPS).

chag sameach

"Literally, 'Happy Holiday.' The traditional, all-purpose greeting exchanged on almost any Jewish holiday" (JPS).

halevai

If only

I wish!

"Would that it be so" (Steinmetz, Yiddish and English)

kippah

"small, round headcovering" (JPS)

mazel

congratulations

luck (good)

Shabbat Shalom

Used as a greeting or departing line (hello or goodbye) on or before Shabbat. Literally "peaceful Sabbath."

shemini atzeret

Holiday celebrated the day after the seven-day holiday of Sukkot.

tzadik

A highly learned and esteemed rabbinic leader (sometimes used as an alternative name for a Hasidic rebbe).

Someone who does extremely righteous deeds.

Common name for the 18th letter of the Hebrew alphabet (tzadi / tzade).