Secure your space with our top-rated locks. Find keyless entry door locks, weatherproof combination padlocks, and specialized locks for a variety of uses.

lock (something) in or lock in (something) : to do something that makes you sure to get (something that could change, such as a good price, an interest rate, etc.)

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.

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 with set …

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

Definition of lock noun in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Master Lock is recognized around the world as the authentic, enduring name in locks, combination padlocks and security products. Learn more about our extensive assortment of security solutions.

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 …

Dec 9, 2025 · A smart lock lets you go key-free and know whenever someone comes and goes. Our pick, the Schlage Arrive Smart WiFi Deadbolt, is sturdy, simple, and reliable.