Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “trigger”

See all translations

trigger

noun [C]  /ˈtrɪɡ·ər/ us  

trigger noun [C] (GUN PART)

a part of a gun that causes the gun to fire when pressed: to pull the trigger

trigger

verb [T]  /ˈtrɪɡ·ər/ us  

trigger verb [T] (START)

to cause something to start: I triggered the smoke alarm when I burned the potatoes. Eating chocolate can trigger a migraine headache in some people.
(Definition of trigger from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of trigger?
Add Cambridge dictionaries to your browser to your website

More American English definitions for “trigger”

Definitions of “trigger” in other dictionaries

Word of the Day

hyphen

the symbol -, used to join two words together, or to show that a word has been divided into two parts at the end of one line and the beginning of the next

Word of the Day

Lies, lies, lies!

by Kate Woodford,
February 25, 2015
​​​ According to sociologists (=people who study the relationships between people living in groups), we are good at lying. As a species, we have developed a remarkable ability to deceive each other (= persuade each other that something false is true). Being able to say things that are not true can help with

Read More 

snapchat verb

March 02, 2015
to send someone a message using the photomessaging application Snapchat We used to have a thing until he got a girlfriend. now

Read More