alarm
Passou pela loja, saiu pela frente e disparou o alarme.
He walked past the store, exited through the front, and set off the alarm.
— As Aventuras de Paddington 2 (2017)
Antes que o alarme fosse desligado, todo mundo já tinha acordado.
Before the alarm was turned off, everyone was already awake.
Tom continuou lendo o jornal, mesmo tendo o alarme disparado.
Tom continued reading the newspaper, even though the alarm had gone off.