限时信 Traditional form: 限時信 Pinyin (reading): xiànshíxìn Definitions: mail to be delivered by a specified time Characters: 限 - boundary, limit, line 时 - time, season; period, era, age 信 - to trust, to believe; letter, sign Traditional characters: 限 - boundary, limit, line 時 - time, season; period, era, age 信 - to trust, to believe; letter, sign