1, lock group words: chain, shackle, chain reaction, long life lock, key, anti-lock, lock, padlock, stone lock, chain, hidden lock, lock country, lock, clavicle, lock, unlocked pig, light lock, lock, closed heart lock, closed eyes lock, north door lock.
2. Lock: Su ㄙㄨㄛˇ. "Lock" is simplified as "lock". Save strokes and simplify them according to ancient calligraphy. "Shuo Wen Jie Zi": "Lock, door key also. From Jin Yin (). " Metal door key device is a model of lock.