Definitions of Aviation Abbreviations Part 1

METAR - Meteorological Aviation Report or Meteorological Terminal Aviation Routine Weather Report, but originally from the French term "MÉTéorologique Aviation Régulière" - which literally translates as "Meteorological Aviation Regular"

TAF - Terminal Aerodrome Forecast

AIRMET - AIRman's METeorological Information

SIGMET - SIGnificant METeorological Information

TFR - Temporary Flight Restriction

FAR - Federal Aviation Regulations (which are under title 14 of the Code of Federal Regulations)

IFR - Instrument Flight Rules

VFR - Visual Flight Rules