Rosh yeshiva (, pl. , ; Anglicized pl. rosh yeshivas) is the title given to the dean of a yeshiva, a Jewish educational institution that focuses on the study of traditional religious texts, primarily the Talmud and the Torah, and halakha (Jewish law). The general role of the rosh yeshiva is to oversee the Talmudic studies and practical matters. The rosh yeshiva will often give the highest shiur (class) and is also the one to decide whether to grant permission for students to undertake classes for rabbinical ordination, known as semicha. The term is a compound of the Hebrew words rosh ("head") and yeshiva (a school of religious Jewish education). The rosh yeshiva is required to have a comprehensive knowledge of the Talmud and the ability to analyse and present new perspectives, called chidushim (novellae) verbally and often in print. In some institutions, such as YU's Rabbi Isaac Elchanan Theological Seminary, the title of rosh yeshiva is given to many rabbis and the dean of the yeshiva is known as the rosh ha-yeshiva. Role The primary role of the rosh yeshiva is not simply to be the dean, but is generally to give the highest-level lecture in the yeshiva, which is usually a program of at least two years. Students who have studied in a yeshiva are generally known as "students of the Rosh Yeshiva", as their lecture is the one in which they usually attain their method of Talmudic analysis and critical reasoning, and this method is based on the particular style of that rosh yeshiva. In addition, since yeshivas play a central role in the life of certain communities within Orthodox Judaism, the position of rosh yeshiva is more than just the position within the yeshiva. A rosh yeshiva is often seen as a pillar of leadership in extended communities. In Hasidic Judaism, the role of rosh yeshiva is secondary to the Rebbe, who is head of the Hasidic dynasty that controls it. In many Hasidic groups, the rosh yeshiva of a school will be the son or son-in-law of the rebbe, the assumed heir of the rebbe. However, the role that yeshivahs have within Hasidic communities is not nearly as important as it is in Lithuanian Jewish (Litvishe) communities. Hasidic students usually get married at the age of 18, which—in most cases—is the end of their yeshiva education. Students in the Lithuanian Jewish communities typically continue to