English

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Noun

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PSO (plural PSOs)

  1. Initialism of public safety officer.
  2. (Australia) Initialism of protective services officer.
  3. (Pakistan) Abbreviation of Pakistan State Oil.
  4. Initialism of protostellar object.
  5. Initialism of penalty shootout.
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(protostellar object):

  • YSO (young stellar object)
  • SSO (substellar object)
  • QSO (quasistellar object)

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