Jodan
Jodan is a term that can refer to several concepts, most commonly in Japanese martial arts. It is derived from the Japanese 上段, read jōdan, and means "upper level" or "upper stance."
In martial arts, jōdan designates the high zone of attack or defense. In kendo, jōdan no kamae
Outside martial arts, jōdan can appear in Japanese-language contexts to describe the upper part of something