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Related to P.A. system: public address systems
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|Noun||1.||P.A. system - an electronic amplification system used as a communication system in public areas|
amplifier - electronic equipment that increases strength of signals passing through it
communication system - a system for communicating
loudspeaker, loudspeaker system, speaker system, speaker unit, speaker - electro-acoustic transducer that converts electrical signals into sounds loud enough to be heard at a distance
tannoy - a loudspeaker