滑索 Traditional form: 滑索 Pinyin (reading): huásuǒ Definitions: zip line Characters: 滑 - to slip, to slide; slippery, polished 索 - cable, rope; rules, laws; to demand, to exact; to search, to inquire Traditional characters: 滑 - to slip, to slide; slippery, polished 索 - cable, rope; rules, laws; to demand, to exact; to search, to inquire