lock up - definition and synonyms

phrasal verb
present tense
I/you/we/theylock up
he/she/itlocks up
present participlelocking up
past tenselocked up
past participlelocked up
  1. 1
    [intransitive/transitive] to lock all the doors and windows of a building so that no one can get in

    I locked up and went to bed.

    The last person to leave locks up the shop.

  2. 2
    [transitive] same as lock away (sense 1)

    The documents were locked up.

  3. 3
    [transitive] same as lock away (sense 2)

    He was locked up for 12 years for armed robbery.

  4. 4
    [intransitive] to invest your money in something, so that it is not available for you to spend
    lock up in:

    There are vast sums of money locked up in pension funds.

See also main entry: lock