List of acronyms: F
(Main list of acronyms)
FA
- fa – Persian language
- FA – Food Addicts in Recovery Anonymous
- fA – Femtoampere
- FA
- * Field Artillery
- * Financial aid
- * [The Association football|Football Association|Football Association]
- * Football Australia
- FAA
- * U.S. Federal Aviation Administration
- * Financial Aid Administrator
- * Fleet Air Arm
- * Functional Area Analysis
- FAAD – Forward Area Air Defence
- FAADEZ – Forward Area Air Defence Engagement Zone
- FAAN – Fellow of the American Academy of Neurology
- FAAFP – Fellow of the American Academy of Family Physicians
- FAAN – Fellow of the American Academy of Nursing
- FAANG – Facebook, Amazon, Apple, Netflix, Google
- FAAQ – Frequently Asked and Anticipated Questions
- FAASV – Field Artillery Ammunition Supply Vehicle
- FAB – Feline Advisory Bureau
- FACF - Fully Automatic Capsule Filler
- * Forward Air Controller
- * Front of Allies for Change
- * Frontal Affinity Chromatography
- * Full Aperture Calibrator
- FACA – Federal Advisory Committee Act
- FACH – Fuerza Aérea de Chile
- FACN – Fellow of the American College of Nutrition
- FACP – Fellow of the American College of Physicians
- FACS
- * Fellow of the American College of Surgeons
- * Formal Aspects of Computing Science
- * Fluorescent-activated cell sorting
- FACTS – Flexible Alternating Current Transmission System
- FAD
- * Flavin Adenine Dinucleotide
- * Funding Authorization Document
- M18 FADAC – Field Artillery Data Computer
- FADEC - Full Authority Digital Engine Control
- FAFSA – Free Application for Federal Student Aid
- FAH
- * Federation of American Hospitals
- * Fine Arts and Humanities
- * Foreign Affairs Handbook
- FAI
- * Fédération Aéronautique Internationale
- * Football Association of Ireland
- FAL - Fusil Automatique Léger, Belgian battle rifle
- FAM – Foreign Affairs Manual
- fao – Faroese language
- FAO – Food and Agriculture Organization
- FAPA – Fellow of the American Psychological Association
- FAPHA – Fellow of the American Public Health Association
- FAQ – Frequently Asked Questions
- FARC – Fuerzas Armadas Revolucionarias de Colombia
- FARDC – "Military of the Democratic Republic of the Congo
- FARP – Forward Arming and Refuelling Point / Forward Area Rearm/refuel Point
- fas – Persian language
- FAS
- * Federation of American Scientists
- * Fetal Alcohol Syndrome
- FASCAM – Family of Scatterable Mines
- FASD – Fetal Alcohol Spectrum Disorder
- FASEB – Federation of American Societies for Experimental Biology
- FAST
- * Face, Arm, Speech, Time
- * Five hundred meter Aperture Spherical Telescope
- * Fixing America's Surface Transportation Act
- FAT – Field Artillery Tractor – File Allocation Table
- FAVS – Future Armoured Vehicle System
- FAW
- * Football Association of Wales
- * First Automobile Works
FB
- FB – Facebook, An on-line social network
- FBCB2 or FBCB2 – Force XXI Battle Command, Brigade-and-Below
- FBCS – Fellow of the British Computer Society
- FBI – Federal Bureau of Investigation
- FBIS – Foreign Broadcast Information Service
- FBIDST – Fellow of the British Institute of Dental and Surgical Technologists
- FBLA Future Business Leaders of America
- FBM – Board foot
- FBR
- * Fast Breeder Reactor
- * Foundation for Biomedical Research
- * Friedman, Billings, Ramsey
- FBS
- * Federal Bureau of Statistics
- * Fetal bovine serum
- * Football Bowl Subdivision
- * Fukuoka Broadcasting Corporation
FC
- fC – Femtocoulomb
- FC
- * Fire Control
- * Football Club
- * Funnel Cloud
- FCA
- * Fellowship of Christian Athletes
- * Fiat Chrysler Automobiles
- * Fraction of Combat Active forces
- FCC – U.S. Federal Communications Commission
- FCE – First Certificate in English
- FCF – Financial Free Cash Flow
- FCFS – First Come, First Served
- FCLA – Fraud Claims Law Associate
- FCM
- * Federation of Canadian Municipalities
- * Fogarty's Cove Music
- FCO – UK Foreign and Commonwealth Office
- FCS
- * Football Championship Subdivision
- * Future Combat System
- FCSB – Fotbal Club Steaua București, a name claimed by two association football clubs in Bucharest – FCSB and CSA Steaua București
- FCW – Florida Championship Wrestling
- * FCW - Forward Collision Warning, see Collision avoidance system
- FCZ – Forward Combat Zone
FD
- FD – Falun Dafa
- FDA – Food and Drug Administration
- FDBK – Feedback
- FDC
- * Federal Detention Center
- * Fire Direction Centre
- FDDI – Fibre Distributed Data Interface
- FdI – Fratelli d'Italia, an Italian political party
- FDI
- * Fault detection and isolation
- * Films Division of India, a government film production agency
- * Flexible Display Interface
- * Foreign direct investment
- * Frégate de défense et d'intervention, a planned class of French Navy ships
- FDNY – Fire Department of New York
- FDR
- * Flight data recorder
- * Franklin Delano Roosevelt
FE
- Fe – Iron
- FE – Fully Exposed
- FEAR
- * First Encounter Assault Recon
- * Focus sash Endeavor Attack Rattata, a last-resort tactic in competitive Pokemon battling
- FEAST – Forum for European-Australian Science and Technology Cooperation
- FEATS – Festival of European Anglophone Theatrical Societies
- FEB
- * Federación Española de Baloncesto
- * Federatie Eredivisie Basketball, the former name of the basketball competition later known in Dutch by the English-language Dutch Basketball League
- * Força Expedicionária Brasileira
- FEBA – Forward Edge of the Battle Area
- fec. – fecit
- FED – Field emission display
- FEF – Frontal Eye Field
- FEI – Fédération équestre internationale
- FEMA
- * Farm Equipment Manufacturers Association
- * U.S. Federal Emergency Management Agency
- FEMEXFUT – Federación Mexicana de Fútbol Asociación
- FENAFUTH – Federación Nacional Autónoma de Fútbol de Honduras
- FENS – Federation of European Neuroscience Societies
- FEP – Firepower Enhancement Program – Fleet satellite Extremely high frequency Package
- FEPAFUT – Federación Panameña de Fútbol
- FES – Flywheel Energy Storage
- FEST – Frankfurt English Speaking Theatre
- FET – Field-effect transistor
- FEZ – Fighter Engagement Zone
FF
- ff – Fula language
- fF – Femtofarad
- FF
- * Final Fantasy
- * Firefox
- FFA
- * Football Federation Australia, former name of the governing body now known as Football Australia
- * Pacific Islands Forum Fisheries Agency
- * Free-Fire Area
- * Fusiform Face Area
- * Future Farmers of America
- FFB – Frum From Birth
- FFC – Free For Chat
- FFCM — Fellow of the Faculty of Community Medicine
- FFE – Fukuoka Futures Exchange
- FFF – Fédération française de football
- FFG – Guided Missile Frigate
- FFOV – Forward Field Of View
- FFP - Federally Funded Participation
- FFPH — Fellow of the Faculty of Public Health, replacing FFPHM
- FFR – Fédération française de rugby
- FFS – For Fuck's Sake
- FFT
- * Fast Fourier transform
- * Final Fantasy Tactics
FG
- FG – Falun Gong
- fg – Femtogram
- FG – Fog – French Guiana
- FGR – Flickr Group Roulette
FH
- fH – Femtohenry
- FHFIF – Foster's Home for Imaginary Friends
- FHI – Family Health International, Fuji Heavy Industries, Ltd.
FI
- fi – Finnish language
- FI – Finland
- FIA – Fédération internationale de l'automobile
- FIAT – Fabbrica Italiana Automobili Torino
- FIBA – originally Fédération internationale de basket-ball amateur ; since 1989, Fédération i'nternationale de basket-ball
- FIBUA – Fighting In Built-Up Areas
- FIC – Fellowship for Intentional Community
- FID – Foreign Internal Defence
- FIDÉ – Fédération internationale des échecs
- FIE – Fly-In Echelon
- FIFA – Fédération internationale de football association
- FIFe – Fédération internationale féline
- FIFO – First In, First Out
- FIFRA – Federal Insecticide, Fungicide, and Rodenticide Act
- FIG
- * Fédération internationale des géomètres
- * Fédération internationale de gymnastique
- * Feminist Improvising Group
- fij – Fijian language
- FILA – Fédération internationale des luttes associées, former name of the sport governing body now known as United World Wrestling
- FILO – First In, Last Out
- FIMPT – Fellow of the Institute of Maxillofacial Prosthetists and Technologists
- fin – Finnish language
- FIN – Finland
- FINA – Fédération i'nternationale de natation
- FIPS – Federal Information Processing Standard
- FIR
- * Final Inspection Report
- * Federazione Italiana Rugby
- FIRES – Fever Induced Refractory Epilepsy Syndrome or Febrile Infection-Related Epilepsy Syndrome
- FIS – Fédération internationale de ski
- FISA – Fédération Internationale des Sociétés d'Aviron
- FISH – Fluorescence In-Situ Hybridisation
- FiST – Fire Support Team
- FITS – Flexible Image Transport System
- FIU – Florida International University
FJ
FK
- fK – Femtokelvin
- FK – Falkland Islands
- FKA - Formerly known as
- FKP – Falkland Islands pound
- FKSM – Fort Knox Supplemental Manual
- FKT – Fastest known time
FL
- fl – floruit
- fL – Femtolitre
- FL – Florida
- FLA – Florida – Front Line Assembly – Future Large Aircraft
- FLAC – Free Lossless Audio Codec
- FLAC – Free Legal Advice Centres
- FLAK – FLugAbwehrKanone
- FLB – Forward Logistics Base
- FLET – Forward Line of Enemy Troops
- FLG – Falun Gong
- FLIP – Flight Information Publication
- FLIR – Forward Looking InfraRed
- FLK – Falkland Islands
- * Also Funny-Looking Kid, a medical initialism for a young child with a mostly normal but somewhat unusual appearance that raises the suspicion index for congenital disorder. Used only before a medical diagnosis has determined the cause of the unusual appearance.
- FLOT – Forward Line of Own Troops
- FLSA – Fair Labor Standards Act
- FLQ – Front de libération du Québec
- FLTSAT – Fleet Satellite
- FLTSATCOM – Fleet Satellite Communication System
FM
- FM – Factory Mutual http://fmglobal.com
- fm – Femtometre
- Fm – Fermium
- FM
- * Federal Magistrate
- * Federated States of Micronesia
- * Field Manual
- * Flight Manager
- * Frequency Modulation
- FMC
- * Federal Magistrates' Court
- * Food Machinery Corporation
- FMCA – Federal Magistrates' Court of Australia
- FMCAfam – Federal Magistrates' Court of Australia: family
- FME – Formal Methods Europe
- FMECA – Failure Modes and Effect Criticality Analysis
- FMJD – Fédération Mondiale du Jeu de Dames
- FMLA – Family Medical Leave Act
- Fmr – Former
- fMRI – Functional Magnetic Resonance Imaging
- FMS
- * Federal Magistrates Service
- * Flight Management System
- * Foreign Military Sales
- FMSF – False Memory Syndrome Foundation
- FMTV – Family of Medium Tactical Vehicles
- FMCG – Fast-Moving Consumer Goods
FN
- fN – Femtonewton
- Fabrique Nationale
- FNA – Functional Needs Analysis
- FNaF - Five Nights at Freddy’s
FO
- fo – Faroese language
- FO
- * Faroe Islands
- * Force Operations
- * Forward Observer
- * Frame Optional
- FOAD – Fuck Off And Die
- FOAF – Friend Of A friend
- FoB – Free On Board
- FOB
- * Forward Operating Base
- * Fall Out Boy
- FOC
- * First of Class
- * Forward of center
- * Full Operational Capability
- FOD - Foreign Object Debris
- FoE
- * Federation of Earth
- * Friends of the Earth
- FOGC – Federal Oil and Gas Council
- FOH – Front Of House
- FOIA – Freedom of Information Act
- FOM – Federation Object Model
- FOMO – Fear of missing out
- FONSI – Finding of No Significant Impact
- FOO – Forward Observation Officer
- FOR
- * Field Of Regard
- * Frame Of Reference
- Fortran – The IBM Mathematical FORmula TRANslating System
- FOS
- * Florida Ornithological Society
- * Full Operational Status
- FoS – Family of Systems
- FOSE – Fallout 3 Script Extender
- FOSE – Federal Office Systems Expo
- FOT – Free on truck
- FOTA – Fellow of the Orthodontic Technicians Association
- FOTC – Flight of the Conchords
- FOUO – For Official Use Only
- FOV – Field Of View
FP
- FP – French Polynesia
- FPF
- * Federação Portuguesa de Futebol
- * Final Protective Fire
- fps – frames per second
- FPS
- * Fire Prevention System
- * First-person shooter
FQ
- FQ – Baker Island – French Southern and Antarctic Territories
- FQDN – Fully Qualified Domain Name
FR
- fr – For real
- fr – French language
- Fr – Francium
- FR – France
- fra – French language
- FRA
- * Federal Railroad Administration
- * France
- FRAGO – Fragmentary Order
- FRAND – Fair, reasonable, and non-discriminatory
- FRCP
- * Federal Rules of Civil Procedure
- * Fellow of the Royal College of Physicians
- FRICBM – Full Range ICBM
- frr – North Frisian language
- FRR
- * Falls Road Railroad
- * Federaţia Română de Radioamatorism
- * Fix, Rebuild, Replace
- * Federaţia Română de Rugby
- FRO – Faroe Islands
- FRS
- * Fellow of the Royal Society
- * U.S. Federal Reserve System
- FRSA – Fellow of the Royal Society of Art
- FRSL – Fellow of the Royal Society of Literature
- fry – West Frisian language
- FRY – Federal Republic of Yugoslavia
FS
- fs – Femtosecond
- fS – Femtosiemens
- FS
- * Fire Support
- * French Southern and Antarctic Territories
- FSA
- * Fire Support Area
- * UK Food Standards Agency
- * Functional Solution Analysis
- FSB
- * Federal'naya Sluzhba Bezopasnosti Rossiyskoi Federatsii
- * Forward Support Battalion
- FSC
- * Federal Supply Classification
- * Forest Stewardship Council
- FSCL – Fire Support Co-ordination Line
- FSE – Fire Support Element
- F&SF – Fantasy & Science Fiction
- FSF – Free Software Foundation
- FSH – Follicle-stimulating hormone
- FSI – Fuel Stratified Injection
- FSK – Federal'naya Sluzhba Kontrrazvedki
- FSM
- * Federated States of Micronesia
- * Flying Spaghetti Monster
- FSO
- * Fire Support Officer
- * Flotilla Staff Officer
- * Foreign Service Officer
- FSS – Fire Support Station
- FSSP – Families of Structurally Similar Proteins
- FST
- * Finance Support Team
- * Finlands Svenska Television
- * Future Soviet Tank
- FSTC – Foreign Science Technology Center
- FSV
- * Fire Support Vehicle
- * Fisheries Survey Vessel
- * Flexible Sender Validation
- * Fort St. Vrain
- * ''Fußball und Sportverein''
FT
- fT – Femtotesla
- FTC – Federal Trade Commission
- FTE – Full Time Equivalent
- FTL – Faster Than Light
- FTP – File Transfer Protocol
- FTS
- * Flight Termination System used during some rocket launches
- * Follow-the-sun
- * Fuck/Forget That/This Shit
- FTSE – Financial Times Stock Exchange
- FTW – For The Win, Fuck the World, Forever Together Wherever
FU
- FU
- * Smoke
- * "Fuck You"
- FUBAR – Fucked/Fouled Up Beyond All Recognition/Repair
- f/u/b/o – For the use and benefit of
- FUBU - For Us, By Us
- FUCK – For, Unlawful, Carnal, Knowledge
- FUD – Fear, Uncertainty & Doubt
- FUGAZI (acronym) – British/American Army slang, then Video Gamer FPS slang for Fucked Up, Got Ambushed, Zipped In.
- ful – Fula language
FV
FW
- fW – Femtowatt
- FW – Forward
- F/W – Fixed Wing
- FWC – Football World Cup
- FWD - Front Wheel Drive
- FWF – Fixed Word Format
- FWI – French West Indies
- FWIW – For What It's Worth
- FWS – U.S. Fish and Wildlife Service
- FWT – Fresh Water Tank
FX
- FX – Firefox – Fox Extended – Metropolitan France – Special effect
- FXX – Metropolitan France
FY
- fy – West Frisian language
- FY – Fiscal Year – Former Yugoslav Republic of Macedonia
- FYA – For Your Agenda
- FYI – For Your Information
- FYROM – Former Yugoslav Republic of Macedonia, currently North Macedonia