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Meaning of IFF

IFF

Pronunciation: [key]
— Mil. Mil.
  1. Identification, Friend or Foe: a system of transmitters and transponders that uses coded signals to distinguish between friendly and hostile aircraft.

iff

Pronunciation: [key]
— Math. Math.
  1. if and only if.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.