adon olam

a hymn in the traditional Jewish liturgy, usually recited before Shacharit and often sung after services in synagogue, made up of traits attributed to God

Akedah

The binding of Isaac (episode in the Torah)

al regel achat

lit. "on one foot"; off-the-cuff; "To answer a question or deal with a query very briefly and cursorily." (Glinert)

aliyah

immigration to Israel

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

ascent

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

Amida

The Shemoneh Esrei prayer, which is said while standing [Amida, lit. "standing".]

aron kodesh

"Literally, "holy ark"." (JPS)

baal koreh

The individual who chants Torah from the scroll at a synagogue. Sometimes used to refer specifically to a person capable of learning and chanting an entire parsha, or to a professional/paid reader as opposed to an amateur. (Literally, "master of reading" or "one who reads")

bal tashchit

Do not be wasteful, do not destroy.

Bamidbar

The Book of Numbers, [lit. "in the wilderness"] (Glinert)

behatzlacha

go with success

good luck (a wish)