B1
a loud noise or flashing light that warns you of danger
Dictionary examples:
The teacher's voice is like an alarm that wakes up sleeping students. (0.0)
The smoke alarm goes off every time I try to cook. (0.0)
My mom's angry voice is scarier than any alarm I've ever heard. (0.0)
What set off the alarm? (20.9)
a burglar/car/fire/smoke alarm (35.3)