Definition of PA abbreviation from the Oxford Advanced American Dictionary

     

    PA

     abbreviation
    abbreviation
    NAmE//ˌpi ˈeɪ//
     
     
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  1. 1public address (system)Announcements were made over the PA.
  2. 2physician's assistant
  3. 3(in writing) Pennsylvania
See the Oxford Advanced Learner's Dictionary entry: PA