set on
US /set ɑːn/
UK /set ɑːn/

1.
أطلق على, هاجم
to cause a person or animal to attack someone or something
:
•
The guard set his dog on the intruder.
الحارس أطلق كلبه على المتسلل.
•
They set on him with sticks and stones.
لقد هاجموه بالعصي والحجارة.