水牢 Traditional form: 水牢 Pinyin (reading): shuǐláo Definitions: prison cell containing water, in which prisoners are forced to be partly immersed Characters: 水 - water, liquid, lotion, juice 牢 - pen, prison, stable; fast, firm, secure Traditional characters: 水 - water, liquid, lotion, juice 牢 - pen, prison, stable; fast, firm, secure