triggers
Definitions
Small devices, such as levers, that release a spring or catch to activate a mechanism, especially the firing mechanism of a firearm.
Events, circumstances, or stimuli that cause a particular reaction, process, or series of events to begin.
Psychological stimuli that cause a person to experience an intense emotional reaction or the recurrence of a traumatic memory.
Examples
Loud noises often act as triggers for his anxiety.
The new policy triggers a series of changes across the entire department.
Certain memories can be powerful triggers for emotional responses.
Synonyms
initiates activates sparks precipitates prompts instigates causes