Rav muvhak (Hebrew: רב מובהק) refers to the teacher from whom a student rabbi received "most of his knowledge". Thus, muvhak could be understood as "principal", or "primary". Correspondingly, talmid muvhak may refer to a rabbi's primary, or outstanding, student.
The typical usage is to state that a particular student's rav muvhak is rabbi A, whereas the student also studied under rabbi B. Rabo (Hebrew: רבו) means his rav/rebbe/rabbi, hence the term rabo muvhak, i.e. "his principal rabbi". According to Jewish law, special honour must be given to a rav muvhak.
In modern times most student rabbis are educated by a number of different rabbis. Therefore, the concept rav muvhak is now uncommon.
- http://www.dafyomi.co.il/bmetzia/halachah/bm-hl-033.htm - Bava Metzia, daf 33, sourced to R'Meir
- http://www.ateret.org.il/uploads/filebank/pdfeng_0224_OntheAir78.pdf[permanent dead link]
- "Archived copy". Archived from the original on 2008-09-18. Retrieved 2009-08-17.CS1 maint: archived copy as title (link) Rav Muvhak - Rabbi Moshe Bleich, Journal of Jewish Education, Sivan 5758