Trigger
Activate
Precipitate
Example Sentences
The loud noise was enough to trigger the car alarm, waking up the entire neighborhood.
His comment about the past seemed to trigger old memories that she wasn’t ready to face.
A sudden change in the weather can trigger allergic reactions for some people.
The news of the promotion triggered a wave of excitement among the employees.
Certain smells can trigger vivid memories of childhood for many people.
The fire drill triggered a sense of panic, though it was just a test.
His actions seemed to trigger an unexpected reaction from the crowd.
A small mistake at work can trigger a series of complications if not addressed quickly.
The documentary about climate change triggered a global movement for environmental action.
A single spark could trigger a massive fire if the conditions are right.