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

Sep 26, 2023 · A deadbolt lock is the most common option for home security, consisting of a thick metal bolt that protrudes through a strike plate and into the door frame to prevent the door from being opened.

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 holding, closing, or …

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Replace or cut new keys for padlocks, enclosures, cabinet doors, and locksets.