In Judaism, a rabbi/ˈræbaɪ/ is a teacher of Torah. This title derives from the Hebrew word רַבִּיrabi[ˈʁäbi], meaning "My Master" (irregular plural רבנים rabanim[ʁäbäˈnim]), which is the way a student would address a master of Torah. The word "master" רב rav[ˈʁäv] literally means "great one".