Wiktionary
alt. (context Judaism English) A rabbinical court which regulates certain parts of Jewish law. n. (context Judaism English) A rabbinical court which regulates certain parts of Jewish law.
Wikipedia
A beth din ( Bet Din, "house of judgment" , Ashkenazic: beis din) is a rabbinical court of Judaism. In ancient times, it was the building block of the legal system in the Biblical Land of Israel. Today, it is invested with legal powers in a number of religious matters (din Torah, "matter of litigation", plural dinei Torah) both in Israel and in Jewish communities in the Diaspora, where its judgments hold varying degrees of authority (depending upon the jurisdiction and subject matter) in matters specifically related to Jewish religious life.