to cause a situation or a series of events to happen, especially without intending to
to cause something to operate, especially by accident
to make someone or something look more attractive by being clearly different from them
to make someone start to laugh, cry, or talk a lot
to make something explode
to start a journey, or to start going in a particular direction
He fears that the election could set off mass protests.
Her plain blue dress was set off by a feather-trimmed hat.
Jeff pushed open the front door, which set off the alarm.
Just mentioning her father’s death could set her off again.
Raskin set off at a brisk pace, almost trotting down the wide Steps.
She rang the door bell, which set off savage barking from all over the house.
She set off on these trips, often in the small hours of the morning, leaving Peter to the ostensible care of Mickey.
Somebody was setting off fireworks down the street.
We set off early the next morning.
With great laughter, Mervin, Flora, and I set off in a taxi.
sets off
setting off
There is no origin for this phrasal verb
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