What is the meaning of the word "p.a. system"?

Definitions:

  1. An apparatus including a microphone and loudspeakers used for broadcasting. copy to clipboard NOUN
    • In train stations, and subway stations, a voice over the PA-system makes an announcement, routinely. copy to clipboard
  2. An electronic amplification system used to reinforce sound, making it audible from a distance or even a large area. copy to clipboard NOUN
    • People were being ushered to nearby classrooms whey they would hear the proceedings over the school's PA-system copy to clipboard

Synonyms: