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Lock

lɒk

Lock definitions
noun
lock locks
  1. a mechanism for keeping a door, window, lid, or container fastened, typically operated by a key

    "the key turned firmly in the lock"

    • a device used to prevent the operation or movement of a vehicle or other machine

      "a steering lock"

    • a facility on a computer or phone that requires a user to verify their identity with a passcode or other form of authentication in order to access the full functionality of the device

      "there's a security lock on the phone and he doesn't know the code"

    • (in wrestling and martial arts) a hold that prevents an opponent from moving a limb
    • a number of interlocked or jammed items

      "I have seen all Albermarle Street closed by a lock of carriages"

  2. a short section of a canal or river with gates and sluices at each end which can be opened or closed to change the water level, used for raising and lowering boats

    "there was a lock every quarter of a mile"

  3. the turning of the front wheels of a vehicle to change its direction of motion
    • the maximum extent that the front wheels of a vehicle can be turned
  4. a player in the second row of a scrum
  5. a person or thing that is certain to succeed; a certainty

    "all of this makes him a lock to make the Hall of Fame"

  6. a mechanism for exploding the charge of a gun
verb
lock locked locking locks
  1. fasten or secure (something) with a lock

    "she closed and locked her desk"

    bolt fasten bar secure make secure make fast seal
    • (of a door, window, etc.) become or be able to be secured with a lock

      "the door will automatically lock behind you"

    • enclose or shut in by locking or fastening a door, lid, etc.

      "he is treated like an unpaid servant and locked in his room"

  2. restrict access to the full functionality or data of (a computer, phone, file, etc.), especially by requiring a user to verify their identity with a passcode or other form of authentication

    "my computer is locked and I've forgotten my login info"

    • (of a phone) operate only on the network of a particular carrier

      "the phone is locked to T-mobile"

  3. make or become rigidly fixed or immovable

    "he locked his hands behind her neck"

  4. go through a lock on a canal

    "we locked through at Moore Haven"