chug

elective class, group activity

group, circle (of people)

hafsaka

break or interruption

kumzits

sing-along; campfire gathering with singing

madrich

1. Youth counselor or supervisor 2. A teacher's assistant for elementary and middle schoolers during classes in religious schools.

moadon

clubhouse, lounge

ruach

spirit, "spiritedness, morale" (JPS)

va'ad

"committee or council" (Steinmetz), group convened for a particular purpose, including rabbinical council, kashrut supervisory council, youth group/synagogue board of directors, study group, etc.