P.A.

from WordNet (r) 3.0 (2006)

p.a.
    adv 1: by the year; every year (usually with reference to a sum
           of money paid or received); "he earned $100,000 per
           annum"; "we issue six volumes per annum" [syn: {per
           annum}, {p.a.}, {per year}, {each year}, {annually}]
    n 1: an electronic amplification system used as a communication
         system in public areas [syn: {public address system}, {P.A.
         system}, {PA system}, {P.A.}, {PA}]

from The Collaborative International Dictionary of English v.0.48

Pa \Pa\ (p[aum]), n.
   A shortened form of {Papa}.
   [1913 Webster]

from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)

PA
       Precision Architecture (HP)

from Moby Thesaurus II by Grady Ward, 1.0

19 Moby Thesaurus words for "pa":
      abba, dad, daddy, father, foster father, genitor, governor,
      old man, pap, papa, pappy, pater, paterfamilias, patriarch, pop,
      pops, sire, stepfather, the old man

from Moby Thesaurus II by Grady Ward, 1.0

45 Moby Thesaurus words for "PA":
      Gramophone, PA system, Victrola, audio sound system, audiophile,
      binaural system, bitch box, bullhorn, cartridge, ceramic pickup,
      changer, crystal pickup, derived four-channel system,
      discrete four-channel system, four-channel stereo system, hi-fi,
      hi-fi fan, high-fidelity, intercom, intercommunication system,
      jukebox, magnetic pickup, monaural system, mono, needle,
      nickelodeon, phonograph, photoelectric pickup, pickup,
      public-address system, quadraphonic sound system,
      radio-phonograph combination, record changer, record player,
      sound reproduction system, sound truck, squawk box, stereo, stylus,
      system, tape deck, tape recorder, tone arm,
      transcription turntable, turntable

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