Siren (alarm)

A siren is a kind of alarm that makes a loud noise to get people's attention. It sounds like a loud screaming noise that goes up and down. Think of it like a really loud whistle that makes an emergency noise.

Sometimes, you might hear a siren when there is an emergency, like a fire or a car accident. That way, people know something is wrong and can stay safe.

Sirens might also be used for things like tornado warnings or to signal that someone important is coming, like an ambulance or a fire truck.

Overall, a siren is a really important tool to help keep people safe and warn them about danger.