Gekkö (Tib. དགེ་བསྐོས་, Wyl. dge bskos), also known as chötrim (Tib. ཆོས་ཁྲིམས་ Wyl. chos khrims) — the master of discipline who ensures that monks uphold their vows and inspires all practitioners to virtue. It is one of the three principle positions in a monastery, with the umdzé and chöpön positions.