便壺 べんつぼ Also written べんこ Meanings Noun night-soil vault; clay pot used to collect feces in an outhouse See also: 汲み取り便所 (くみとりべんじょ). See also: 壺 (つぼ). See also: 便槽 (べんそう). Kanji 便 convenience. Read as ベン. 壺 jar; pot. Read as つぼ. Jinuma: Japanese Dictionary · Word lists