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A heavy-duty combination lock or a padlock can secure outdoor storage, fences, self-storage units or lockers, keeping your belongings safe. When purchasing a combination lock, choose one …

The meaning of LOCK is a fastening (as for a door) operated by a key or a combination. How to use lock in a sentence.

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Define lock. lock synonyms, lock pronunciation, lock translation, English dictionary definition of lock. n. 1. A device operated by a key, combination, or keycard and used, as on a door, for …

LOCK definition: 1. a device that prevents something such as a door from being opened and can only be opened with a…. Learn more.