Acronyms, Abbreviations, and Initialisms.
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The meaning of the Acronym NIO is...

NIO is

  • New Input/ Output

More Meanings For NIO:

  • New Input/ Output
  • National Institute of Oceanography
  • National Institute of Oceanography
  • Not In Order
  • Nuveen Insured Municipal Opportunity Fund
  • New Initiatives Office
  • New Initiatives Office
  • New Initiatives Office
  • New Initiatives Office
  • New Imperial Order
  • Nioki, Zaire
  • Nicaragua Cordoba

NIO is also in:

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