乾ㄍㄢgān女ㄋㄩˇnǚ兒ㄦˊér

稱謂。對所認女兒的稱呼。如：「林太太與隔壁的王小妹非常投緣，所以決定收她為乾女兒。」

英adopted daughter (traditional adoption, i.e. without legal ramifications)