balebos
Master of the house, head of the household, host.
House owner, homeowner.
Boss, person in charge (of anything).
Important man, bourgeoisie.
An annual custom that lasted for many years involved a celebration of the eight days of Chanukah for all of the balebatim. Every evening was hosted by a different balebos and there was a lavish feast.
Where it comes from
Borrowed from Yiddish בעל־הבית (balebos), from Hebrew בַּעַל הַבַּיִת (bá'al habáyit, “master of the house”).
Adapted from the Wiktionary entry balebos (CC BY-SA 4.0).