What is the meaning of the word "pa system"?

Definitions:

  1. An electronic amplification system used as a communication system in public areas. copy to clipboard NOUN
    • The amusement park's PA system played upbeat music to create a festive atmosphere. copy to clipboard
  2. An electronic system used to amplify and distribute sound so it can be heard clearly by a large audience or in a public space. copy to clipboard NOUN
    • The concert's PA system ensured the band's music could be heard by thousands of fans. copy to clipboard
  3. Short for Public Address System. copy to clipboard NOUN
    • The principal used the PA system to make morning announcements to the entire school. copy to clipboard

Synonyms: