wake-up signal

• Sinal, som ou aviso destinado a despertar alguém do sono ou a chamar a atenção para um evento ou situação importante.

A signal, sound, or alert designed to wake someone from sleep or to draw attention to an important event or situation.

1. Alarm or alertB1informal

   A sound, signal, or event that wakes someone up or alerts them to start paying attention.

   Sinal de despertar

   • The loud beep of the alarm clock was my wake-up signal.
   • The phone's ringtone served as a wake-up signal for the meeting.
   • The sudden noise was a wake-up signal for the entire neighborhood.

2. Metaphorical call to actionB2informal

   An event or piece of information that makes someone realize they need to take action or change their behavior.

   Sinal de alerta

   • The failing grade was a wake-up signal for him to study harder.
   • The company's losses were a wake-up signal to change their strategy.
   • Her health scare was a wake-up signal to start exercising.