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p.a.

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  1. participial adjective.
  2. per annum.
  3. press agent.
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P.A.

  1. Parents' Association.
  2. Insurance. particular average.
  3. passenger agent.
  4. post adjutant.
  5. power of attorney.
  6. press agent.
  7. public-address system.
  8. publicity agent.
  9. purchasing agent.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for p.a.

p.a.

abbreviation for
  1. per annum
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Word Origin

Latin: yearly
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for p.a.

n.

abbreviation of "public address" (system), attested from 1936.

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Online Etymology Dictionary, © 2010 Douglas Harper