Ifr

name, noun

name, noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Initialism of instrument flight rules, a set of rules for a pilot flying on instruments, primarily as a means of navigating through inclement weather. abbreviation, alt-of, initialism
  2. 2
    Initialism of infection fatality rate. abbreviation, alt-of, initialism

    "For quotations using this term, see Citations:IFR."

Proper Noun
  1. 1
    Initialism of Integral Fast Reactor. abbreviation, alt-of, initialism

Example

More examples

"A VOR check ensures the aircraft's navigation equipment is accurate and reliable. It must be done every 30 days if IFR operations are being conducted."

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.