set-off in a sentence

Definition

SET-OFF: to trigger or initiate a series of events or reactions.

The sudden loud noise set off a chain reaction of panic in the crowded hall.
Her comment about the weather set off a lively debate among the friends.
The discovery of the missing funds set off an internal investigation at the company.
As soon as he lit the match, it set off a series of unfortunate events.
The unexpected announcement set off waves of excitement across the community.