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lock - definition and synonyms


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verb lock pronunciation in British English /lɒk/
Word Forms
present tense
present participlelocking
past tenselocked
past participlelocked
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  1. 1
    [transitive] to fasten something such as a door or a container, usually with a key, so that other people cannot open it
    John went out and locked the door behind him.
    Have you locked the car?
    lock something in something: She locked the documents in the safe.
    1. a.
      [intransitive] to become fastened with a lock
      The door slammed and locked.
      This drawer won’t lock.
  2. 2
    [intransitive] if something locks in a particular position, it is firmly fixed or held in that position
    The brakes locked and the car spun off the road.
    1. a.
      [transitive] to lock or fix something firmly in a particular position
      He locked his arms around her waist.
  3. 3
    [transitive] computing to prevent information on a computer from being changed or looked at by someone who does not have permission
    All entries are locked so no unauthorized modifications can be made.



a course of study which is much shorter than a university course and focuses on the skills you need for a job, especially computer-related skills

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