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

  • abbr. visual flight rules

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • Visual Flight Rules , a set of rules allowing a pilot to fly by sight references, rather than by relying on instruments under Instrument Flight Rules ("IFR").
  • Visiting Friends and Relatives, used in statistics as one section of the market.


Sorry, no etymologies found.



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