Pa

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PA, Pa, pA, or pa may refer to:

Places[edit]

Science and technology[edit]

  • Peano axioms, in mathematical logic
  • Public address system, a system used to amplify speech or music so that they may be heard by large crowds of people, especially outdoors
  • PA-RISC, an instruction set architecture developed by Hewlett-Packard
  • .pa, the country code top level domain (ccTLD) for Panama

Chemistry[edit]

Physics[edit]

Medicine[edit]

Organizations[edit]

Politics[edit]

Military[edit]

  • , a fortified Māori village
  • Pakistan Army, the ground arm of the Armed forces of the Islamic Republic of Pakistan
  • Philippine Army, the ground arm of the Armed Forces of the Philippines
  • Public affairs (military), the office at a military installation the media coordinates through to gain information that may be publicly announced for news events

Other uses[edit]

Linguistics[edit]

See also[edit]