Rosh yeshiva (Hebrew: ראש ישיבה; pl. Heb. Roshei yeshiva; Yeshivish: Rosh yeshivahs), is the title given to the dean of a Talmudical academy (yeshiva). It is made up of the Hebrew words rosh — meaning head, and yeshiva — a school of religious Jewish education. The rosh yeshiva is required to have a vast and penetrating knowledge of the Talmud and the ability to achieve a level of mastery of his material and an ability to analyse and present new perspectives, called chidushim, (novellae) verbally and often in print.
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