verb · to restrict access to a computer system, account, or file to prevent overwriting or unauthorized use

连续三次输入错误密码后，账户将被锁定。

verb · to physically secure a door, latch, or object into place

请按下按钮，将集装箱的门栓锁定。

verb · to focus attention on a specific person or object, or to zero in on a target

雷达已经锁定了敌方的战斗机。