trigger

US /ˈtrɪɡɚ/

UK /'trɪɡə(r)/

B1
n.NounLever on a gun that you pull to fire
Pull this trigger to fire the gun
n.NounDevice that starts a process
There is a trigger on the security system that can sound an alarm
v.t.Transitive VerbTo start a process off e.g. a memory
When you sing, you trigger a picture in my mind of the ocean
v.t.Transitive VerbTo cause something to begin or happen.
The alarm is triggered by movement.
n.NounAn event or thing that causes something to happen.
The assassination was the trigger for the war.
n.NounSomething that causes a person to have a strong emotional reaction of fear, shock, anger, or anxiety.
Certain words can be a trigger for people with PTSD.
n.NounA pulse or signal that initiates an action or process in an electronic circuit.
The oscilloscope uses a trigger to synchronize the display.
n.NounA procedure that automatically executes in response to certain events on a particular table or view in a database.
The database trigger automatically updates the audit trail.
n.NounA device on a fishing rod that releases the line.
The fishing rod has a sensitive trigger.
v.t.Transitive VerbTo cause a sudden, involuntary reaction.
His gag reflex triggers easily.

Video subtitles

Does Protein Powder Work? (Spoiler: YES, but there's a catch)

05:55Does Protein Powder Work? (Spoiler: YES, but there's a catch)

What is clear-air turbulence and how was SQ321 affected?

03:48What is clear-air turbulence and how was SQ321 affected?

Avenged Sevenfold Nightmare

06:16Avenged Sevenfold   Nightmare

This Much Will Kill You

03:41This Much Will Kill You

What causes Pneumonia? plus 9 more videos.. #aumsum

10:58What causes Pneumonia? plus 9 more videos.. #aumsum