רְבַב

רְבַבch. same, to be great, esp. to be a teacher, be in office. Y.M. Kat. III, 83b top כגון אנן דרַבְבִינָן משגחיןוכ׳ such as we, who are teachers: people look up to us to answer their questions; ib. ואנןאפי׳ רבבינןוכ׳ and we, although we are teachers, we know not