SOUND

[verb]The factory bell sounds (= makes a noise) every day at five o'clock to tell people they can go. [I]Sounding the car's horn, she drove at high speed through the crowded streets. [T]See death knell at death.If someone sounds a warning, they cause a noise to be made or say or shout a message to warn people about something.Quick, sound the alarm - there's a fire in the machine room!We heard the trumpeter sound the retreat (= play the military musical signal to move back).