Literally means for a low-lying land or ground, consequently, a lower swampy field or backswamp suitable for a paddy field. But, at present, it can only be found that it is used as a place-name or its element for one with such a topographic feature, in addition, as a surname or its part named after such a place name, as a dialectal Chinese character used in Ibaraki and Fukushima Prefecture, Japan, while being one of 国字, Japanese-made Chinese characters.