
- LOCK | English meaning - Cambridge Dictionary- LOCK definition: 1. a device that prevents something such as a door from being opened and can only be opened with a…. Learn more. 
- LOCK Definition & Meaning - Merriam-Webster- 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 & Meaning | Dictionary.com- 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a door, gate, lid, drawer, or the like in position when closed, consisting of a bolt or system of bolts propelled and withdrawn by a mechanism operated by a … 
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- Lock | Types, Mechanisms & Benefits | Britannica- Lock, mechanical device for securing a door or receptacle so that it cannot be opened except by a key or by a series of manipulations that can be carried out only by a person knowing the secret … 
- Best Smart Locks of 2025: High-Tech Door Defenses - CNET- These smart locks make it easy to bring your door online and manage it from anywhere. After testing the best smart locks on the market, these are my favorites. 
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- 18 Types of Locks for Doors: Complete Guide (2025)- 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 …