0 abbreviation for self-addressed stamped envelope: an envelope with a stamp and your name and address on it that you send inside another envelope to an organization when you want a reply -- (貼足郵資寫明姓名地址的)回郵信封(self-addressed stamped envelope的縮寫)
Please enclose an SASE with your application. 請隨申請書附上貼足郵資寫明姓名地址的回郵信封。