Quote:
Originally Posted by Umpteenth
Infield is one word, and therefore should be abbreviated with "I". This would make the abbreviation for Infield Fly Rule "IFR".
For those of us who are former military, we know "IFF" as "Identification Friend or Foe", used in aircraft transponders.
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IFR can also stand for
IFR Instrument Flight Rules (aviation)
IFR International Financing Review (Thomson Financial Limited, London, UK)
IFR Institut Fédératif de Recherche (Research's Federative Institute)
IFR International Federation of Robotics
IFR International Finals Rodeo
IFR International Financial Review
IFR Interrupt Flag Register
IFR Instrumented Flux Return
IFR Interleaved Frame Recording (Video)
IFR In Frame Response
IFR In-Flight Report
IFR Interior Furniture Resources (Harrisburg, PA)
IFR Induced Field Ratio
IFR Intrinsic Failure Rate (reliability engineering)
IFR Initiative for Fiduciary Responsibility
IFR Insurance and Financial Review (State Farm)
IFR Issued for Review
IFR Injury Frequency Ratio (OSHA)
IFR International Fantasy Regulation (Bulwer-Lytton Fiction Contest)
IFR Institute of Finance Research (Vietnam)
IFR Indirect Fractal Resolution
IFR Integrated Functional Representation
IFR Interference-Fading Resistance
IFR Item for Review
IFR Instant Failure Rate
IFR Infield Fly Rule (baseball)
IFR Ideal Final Result (problem solving)
IFR Increasing Failure Rate
IFR Internal Floating Roof (storage tanks)
IFR Interim Financial Reporting (accounting)
IFR Institut für Religionspolitologie eV (Duisburg, Germany)
IFR Institute for Fisheries Resources
IFR International Fleet Review
IFR Interface Repository (CORBA)
IFR Institute of Food Research (UK)
IFR In-Flight Refueling
IFR Infrared Receiver
IFR Institute for Fisheries Research
IFR Integral Fast Reactor (nuclear reactor)
IFR Inherently Flame Retardant
IFR Indoor Firing Range
IFR Initial Flight Release (aviation)
IFR Interim Final Rule (FDA)