插锁 Traditional form: 插鎖 Pinyin (reading): chāsuǒ Definitions: mortise lock Characters: 插 - to insert, to stick in; to pierce; to plant 锁 - lock, padlock; chains, shackles Traditional characters: 插 - to insert, to stick in; to pierce; to plant 鎖 - lock, padlock; chains, shackles