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.

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

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Lock definition: a device for securing a door, gate, lid, drawer, or the like in position when closed, consisting of a bolt or system of bolts propelled and withdrawn by a mechanism operated by a …

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Oct 3, 2025 · Our new top pick is the Schlage Arrive Smart WiFi Deadbolt due to its combination of robust hardware, simple installation and controls, top-tier security, and overall reliability. The …

Mar 11, 2025 · Choosing the right type of lock is crucial as it directly impacts the level of security and convenience offered. With various types of locks for doors available, each designed for …