Did you know?

Click any word in a definition or example to find the entry for that word

guard - definition and synonyms


What are red words?

90% of the time, speakers of English use just 7,500 words in speech and writing. These words appear in red, and are graded with stars. One-star words are frequent, two-star words are more frequent, and three-star words are the most frequent.



The thesaurus of synonyms and related words is fully integrated into the dictionary. Click on the thesaurus category heading under the button in an entry to see the synonyms and related words for that meaning.

noun guard pronunciation in American English /ɡɑrd/
Word Forms
  1. 1
    [countable] someone whose job is to protect a place or person so that no one causes damage, steals anything, or escapes
    uniformed border guards
    a prison guard
    post a guard: The captain posted two guards at the gate.
    armed guard: There was an armed guard on duty outside his door.
    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
      Synonyms and related words
    2. b.


      [countable] Irish informal an officer in the Irish police force
      Synonyms and related words
  3. 5
    [countable] British a train conductor



… a feeling of pleasure you get from spending time doing what you want and not worrying about what other people are doing or saying

BuzzWord Article

Word of the Day

Mardi Gras

shrove tuesday

Open Dictionary

brain fade

a temporary inability to think clearly or remember information

add a word


A must for anyone with an interest in the changing face of language. The Macmillan Dictionary blog explores English as it is spoken around the world today.

global English and language change from our blog