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View synonyms for

trigger

[ trig-er ]

noun

  1. a small projecting tongue in a firearm that, when pressed by the finger, actuates the mechanism that discharges the weapon.
  2. a device, as a lever, the pulling or pressing of which releases a catch or spring.
  3. anything, as an act or event, that serves as a stimulus and initiates or precipitates a reaction or series of reactions.
  4. something that evokes the memory of a traumatic experience, setting off an intense negative emotional reaction:

    This issue of the magazine contains accounts of sexual assault, and may be a trigger for some people.

  5. Slang. triggerman.


verb (used with object)

  1. to initiate or precipitate (a chain of events, scientific reaction, psychological process, etc.):

    Their small protest triggered a mass demonstration.

  2. to fire or explode (a gun, missile, etc.) by pulling a trigger or releasing a triggering device:

    He accidentally triggered his rifle.

  3. to set off a negative emotional reaction in (someone), as by evoking the memory of a traumatic experience, repeatedly raising a sensitive issue, etc.:

    I missed seeing my mom in the ICU before she died, and imagining her there triggers me every time I see ICU footage on TV.

verb (used without object)

  1. to release a trigger.
  2. to become active; activate.

trigger

/ ˈٰɪɡə /

noun

  1. a small projecting lever that activates the firing mechanism of a firearm
  2. machinery a device that releases a spring-loaded mechanism or a similar arrangement
  3. any event that sets a course of action in motion
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. usually foll by off to give rise (to); set off
  2. to fire or set in motion by or as by pulling a trigger
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Derived Forms

  • ˈٰ, adjective
  • ˈٰ, adjective
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Word History and Origins

Origin of trigger1

First recorded in 1615–25; earlier tricker, from Dutch trekker, equivalent to trekk(en) “to pull” + -er -er 1
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Word History and Origins

Origin of trigger1

C17 tricker , from Dutch trekker , from trekken to pull; see trek
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Idioms and Phrases

Idioms
  1. quick on the trigger, Informal. quick to act or respond; impetuous; alert.

More idioms and phrases containing trigger

In addition to the idiom beginning with trigger , also see quick on the draw (trigger) .
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Example Sentences

Examples have not been reviewed.

Can he trigger something similar at Sacramento State?

From

The risk lay in overloading the system by turning everything on at the same time and triggering another massive outage.

From

Twelve states have so-called trigger laws that would either cancel expansion or require changes in the state program if the federal match rate dropped below 90%.

From

However, she wrote, "this then triggered a whole series of correspondence, the outcome of which, is that no one seems to know who is responsible for the shipwreck," said the coroner.

From

The incident triggered a large law enforcement response and the closure of North Soto Street in both directions, according to helicopter footage captured by KTLA.

From

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

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