alertsignal
nounUK /əˈlɜːt ˈsɪɡnəl/
US /əˈlɝːt ˈsɪɡnəl/
A sound or sign that tells people something is happening and they should pay attention.
The fire alarm sent an alertsignal through the whole school.
RELATED WORDS
OTHER MEANINGS
2. A light or sound that warns of danger.
The storm alertsignal flashed red on the coast.
3. A message that tells someone to get ready to act.
The coach gave an alertsignal for the team to start running.
4. A beep or buzz from a device that asks for attention.
My phone's alertsignal told me a text had arrived.