der Auslöser
Translation
trigger, cause, shutter release, catalyst
Examples
Stress war der Auslöser für seine Krankheit.
Stress was the trigger for his illness.
Drück den Auslöser, um ein Foto zu machen.
Press the shutter release to take a photo.
Grammar Patterns
the trigger ((for sth.)) the trigger for something Stress is often the trigger for headaches.
Similar Words
Ursache, Grund, Anlass
Etymology
From the verb 'auslösen' (to trigger). 'aus' (out) + 'lösen' (to release). The thing that 'releases out' an action or event.
Memory Tips
Think of a camera shutter 'releasing out' (auslösen) the light to take a picture. The 'Auslöser' is the button that does this.