Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “trigger”

trigger

noun uk   /ˈtrɪɡ.ər/ us    //

trigger noun (GUN PART)

[C] a part of a gun that causes the gun to fire when pressed: It's not clear who actually pulled the trigger.

trigger noun (START)

[C usually singular] an event or situation, etc. that causes something bad to start: There are fears that the incident may be a trigger for further violence in the capital.

trigger

verb [T] uk   /ˈtrɪɡ.ər/ us    //
C1 to cause something bad to start: Some people find that certain foods trigger their headaches. The racial killings at the weekend have triggered off a wave of protests.
(Definition of trigger from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of trigger?
Add Cambridge dictionaries to your browser to your website

Definitions of “trigger” in other dictionaries

Word of the Day

for starters

used to say that something is the first in a list of things

Word of the Day

Come on – you can do it! Phrasal verbs with ‘come’.

by Liz Walter​,
November 19, 2014
As part of an occasional series on the tricky subject of phrasal verbs, this blog looks at ones formed with the verb ‘come’. If you are reading this blog, I’m sure you already know come from, as it is one of the first things you learn in class: I come from Scotland/Spain.

Read More 

ped-text verb

November 24, 2014
to text someone while walking I’m ped-texting, I’m looking down at my phone, 75 percent of the time.

Read More