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guard - definition and synonyms


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noun guard pronunciation in British English /ɡɑː(r)d/
Word Forms
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  1. 1
    [countable] someone whose job is to look after a place or person so that no one causes damage, steals anything, or escapes
    a prison guard
    uniformed border guards
    armed guard: There was an armed guard on duty outside his door.
    post a guard: The captain posted two guards at the gate.
    1. a.
      [singular] a group of guards who are working together
      change/relieve the guard: The guard was due to be relieved at six o’clock.
  2. 2
    [singular] a unit of soldiers or police officers, especially one that has a particular job
    members of the Presidential guard
    troops belonging to the National Guard
    1. a.


      [plural] used in the names of some units in an army, especially the British army
      a captain in the Scots Guards
    2. b.


      [countable] Irish informal an officer in the Irish police force
  3. 3
    [countable] something that helps to stop something bad from happening
    guard against: We kept the landmines as a guard against invasion from the North.



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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an ancient Roman system of underfloor heating, used to heat houses with hot air; from the Latin 'hypocaustum'

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