from The American Heritage® Dictionary of the English Language, 4th Edition

  • abbr. neuropsychiatry
  • abbr. notary public
  • abbr. noun phrase
  • abbr. nurse practitioner

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The ISO 3166-1 two-letter (alpha-2) code for Nepal.
  • abbr. notary public
  • abbr. nurse practitioner
  • abbr. national park
  • abbr. noun phrase
  • abbr. Now playing.
  • abbr. No problem.
  • n. Abbreviation of "non-deterministic polynomial"; the complexity class of computational problems that a non-deterministic Turing machine can solve in polynomial time.


Sorry, no etymologies found.


  • Meyer said he never propagated what he called the NP's disappearance into thin air.

    ANC Daily News Briefing

  • Nasionale Party in criticism of what they termed the NP's belated objections to communist influence in the ANC.

    ANC Daily News Briefing

  • Not to mention the toxin mercury landing in the soil, lakes and rivers around Mt. Rainier NP from the coal-fired plant.

    Republicans Try to Save Renewable Energy Tax Incentive « PubliCola

  • They can, however, be solved in polynomial time by a non-deterministic Turing machine (the name NP means non-deterministic polynomial).

    The Tech Report: News

  • This is one of a set of problems labeled "NP" - a characteristic is that you can verify an possible answer in polynomial time.


  • This NP is longer than most sentences — I think it’s longer than any I am using in this post — and that means it is entirely possible for the reader to forget what the beginning of the sentence was by the time they get to the end of the NP.

    Yanni illustrates an important point about grammar « Motivated Grammar

  • Your NP will be available to help you on a daily basis to navigate insulin dose changes, reach developmental goals with your child, and custom work special social situations.

    A Team Approach

  • The NP was a “nationalist” party composed of Afrikaners who were fed up with being second-class citizens to the British.


  • Apparently at this hospital after a procedure the patient goes to recovery where the NP is the "doctor" in charge of care- at least until their shift ends.

    Hand off problems or lack of personal responsibility by physician

  • Linsay speculates “that the prediction of climate will turn out to be what the computer scientists call NP complete…” and Bender is “inclined to agree…”

    KTH, Stockholm Conference « Climate Audit


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