Dictionary/二号にごうNigou二号 (Nigou) is a Japanese noun meaning “number two, mistress, concubine”.Meaningsnounnumber twonounmistress; concubineKanji in 二号二two号nicknameRelated words二人two persons二死two out二度とnever again二つtwo二人ともboth (people)号number二two2日2nd day of the month番号number再びagain二次second第二second