FID
FID is used in scientific labs for flame ionization detectors, in military circles for foreign internal defense, and in business as the foot‑in‑the‑door persuasion technique.
Miscellaneous
Frighteningly Intelligent Demigods
Frequency Intensity And Duration
Find Intoxicating Drugs
Finger In Dike
Federazione Italiana del Design
Flat Incline Decline
Foundation for Intercultural Dialogue
Community
Governmental
Foreign Internal Defense
Failure IDentification
Flight Implementation Directive
Financial Institutions Division
Federation for Information and Documentation