trigger

noun

  1. 1

    an act that sets in motion some course of events

  2. 2

    lever that activates the firing mechanism of a gun

  3. 3

    a device that activates or releases or causes something to happen

verb

  1. 1

    release or pull the trigger on

    Trigger a gun

  2. 2

    put in motion or move to act

    trigger a reaction

    actuate the circuits

Synonyms

Also useful for “trigger”:Unscrambler