Short for "hall manager's" (dōsu 堂司) "assistant" (anja 行者). A junior monk charged with assisting the rector (ino 維那), a senior officer called the "hall manager" because he/she was traditionally the overseer of discipline in the sangha hall (sōdō 僧堂), home to the great assembly (daishu 大衆) of monks in training. The rector's assistant, in general, works to direct the movements of the great assembly, e.g. by playing percussion instruments that signal the start of activities, hanging placards, making verbal announcements, and so on. →"rector," "assistant."