Av Beit Din, or Av Beis Din, or Av Beth Din (אב בית דין) Hebrew, literally "Father of the House of Justice". The Av Beit/Beis Din was the second-highest ranking member of the Sanhedrin during the Second Commonwealth period. He presided over the Sanhedrin in the absence of the Nasi, and was the chief of the Sanhedrin when it sat as a criminal court. Hebrew redirects here. ... For the tractate in the Mishnah, see Sanhedrin (tractate). ... In Jewish history, the Second Commonwealth is the period during which the Second Temple of Jerusalem was in existence, roughly 530 BCE-70 CE. Categories: | ... Nāśī’ (נָשִׂיא) is a Hebrew term meaning, roughly, Prince. In classical times it was the title given to the head of the Sanhedrin, the supreme court and legislative body of ancient Israel. ...

It is presently being used as an honorific title for the presiding rabbi of a beit/beis din (rabbinical court), who is typically the salaried rabbi of the local Jewish community and not necessarily a renowned posek ("decisor" of Jewish law.) For the town in Italy, see Rabbi, Italy Rabbi (Sephardic Hebrew רִבִּי ribbī; Ashkenazi Hebrew רֶבִּי rebbī or rebbə; and modern Israeli רַבִּי rabbī) in Judaism, means teacher, or more literally great one. The word Rabbi is derived from the Hebrew root-word RaV, which in biblical Hebrew means great or distinguished (in... A beth din (בית דין, Hebrew: house of judgment, plural battei din) is a rabbinical court of Judaism. ... For the town in Italy, see Rabbi, Italy Rabbi (Sephardic Hebrew רִבִּי ribbī; Ashkenazi Hebrew רֶבִּי rebbī or rebbə; and modern Israeli רַבִּי rabbī) in Judaism, means teacher, or more literally great one. The word Rabbi is derived from the Hebrew root-word RaV, which in biblical Hebrew means great or distinguished (in... Posek (Hebrew פוסק, IPA: , pl. ... Halakha (Hebrew: הלכה; also transliterated as Halakhah, Halacha, Halakhot and Halachah) is the collective corpus of Jewish religious law, including biblical law (the 613 mitzvot) and later talmudic and rabbinic law as well as customs and traditions. ...