B2verb1K

Trigger

UK /["/ˈtrɪɡə(r)/","/ˈtrɪɡəz/","/ˈtrɪɡəd/","/ˈtrɪɡərɪŋ/"]/US /["/ˈtrɪɡər/","/ˈtrɪɡərz/","/ˈtrɪɡərd/","/ˈtrɪɡərɪŋ/"]/

Definition

to make something happen suddenly

In simple words: To cause something to happen.

Examples

  • Nuts can trigger off a violent allergic reaction.
  • The incident triggered protests across the country.
  • A wide range of emotionally stressful events may trigger a relapse.
  • Her case triggered a wave of support around the world.
  • Even the smell of oranges can trigger her migraine.
  • He has a brain disorder that can trigger off convulsive fits.
  • to trigger an alarm
  • Sometimes, the slightest things trigger me because they remind me of my mum.

Usage notes

Commonly used in both casual and formal contexts. Often used to describe a cause-and-effect relationship, especially in psychology or discussions about emotions. Avoid when discussing less serious or trivial matters.

Grammar pattern

trigger + object

Memory hint

Think of a gun trigger — when you pull it, something happens.

Collocations

  • trigger a response
  • trigger an alarm
  • trigger emotions
  • trigger a memory
  • trigger a reaction

Synonyms

  • set off, set something off

Antonyms

  • calm
  • deactivate
  • stop

Common mistakes

  • Using 'trigger' without an object (e.g. 'The noise triggered' instead of 'The noise triggered a reaction').
  • Confusing with 'triggered' as a noun.
  • Mixing up with 'impact' or 'affect' too broadly.