public address system

Found in Anh - Anh (Wordnet)

Definition Noun : An electronic amplification system used as a communication system in public areas : A public address system is a set of equipment, including microphones, amplifiers, and loudspeakers, used to make speech or other sounds audible over a large area to a group of people. Usage Examples Noun : The announcement over the public address system informed passengers of the delay. The sch...