Rabbi

A rabbi has no more authority over rituals than any other adult male member of the Jewish community. A rabbi is simply a teacher who has been formally educated in Jewish Law. Rabbi are the spiritual leaders of the community. A Jewish community does not need a rabbi, and it's not unusual for Jewish services to be conducted without one. Unlike a Catholic Priest, a rabbi cannot absolution of sins. Today, a rabbi can be a man or a woman.

http://www.jewishvirtuallibrary.org/jsource/Judaism/Rabbis.html