共通部分 きょうつうぶぶん Meanings Noun, の-adjective intersection (of sets); common set See also: 積集合 (せきしゅうごう). Kanji 共 together. Read as キョウ. 通 pass through. Read as ツウ. 部 part 分 part. Read as ブン. Word lists Mathematics Jinuma: Japanese Dictionary · Word lists