(Main list of acronyms)

__NOTOC__

  • f – (s) Femto
  • F – (s) Farad – Fluorine

FA

  • fa – (s) Persian language (ISO 639-1 code)
  • FA – Food Addicts in Recovery Anonymous
  • fA – (s) Femtoampere
  • FA
  • (i) Field Artillery
  • Financial aid
  • Football Association (England)
  • Football Australia (governing body for association football)
  • FAA
  • (i) U.S. Federal Aviation Administration
  • Financial Aid Administrator
  • Fleet Air Arm
  • Functional Area Analysis
  • FAAD – (a) Forward Area Air Defence
  • FAAN – (i) Fellow of the American Academy of Neurology
  • FAAFP – (i)Fellow of the American Academy of Family Physicians
  • FAAN – (i) Fellow of the American Academy of Nursing
  • FAANG – Facebook, Amazon, Apple, Netflix, Google (the leading stocks in the late-2010s US market rally) (c.f. FANG, which originally did not include Apple)
  • FAAQ – (a/i) Frequently Asked and Anticipated Questions (cf. FAQ)
  • FAASV – (i) Field Artillery Ammunition Supply Vehicle
  • FAB – (i) Feline Advisory Bureau (UK feline charity)
  • (i) Forward Air Controller
  • Front of Allies for Change
  • Frontal Affinity Chromatography
  • Full Aperture Calibrator
  • FACA – (a) (US) Federal Advisory Committee Act
  • FACH – (a) Fuerza Aérea de Chile
  • FACN – (i) Fellow of the American College of Nutrition
  • FACP – (i) Fellow of the American College of Physicians
  • FACS
  • (i) Fellow of the American College of Surgeons
  • (a) Formal Aspects of Computing Science
  • Fluorescent-activated cell sorting
  • FACTS – (a) Flexible Alternating Current Transmission System
  • FAD
  • (i) Flavin Adenine Dinucleotide
  • (a) Funding Authorization Document
  • M18 FADAC – (p) Field Artillery Data Computer
  • FADEC - (a) Full Authority Digital Engine (or Electronic) Control
  • FAFSA – (a) Free Application for Federal Student Aid (US)
  • FAH
  • (i) Federation of American Hospitals
  • Fine Arts and Humanities
  • Foreign Affairs Handbook
  • FAI
  • (i) Fédération Aéronautique Internationale (French, "International Aeronautics Federation")
  • Football Association of Ireland
  • FAL - (a) Fusil Automatique Léger (French, Light Automatic Rifle), Belgian battle rifle
  • FAM – (i) Foreign Affairs Manual
  • fao – (s) Faroese language (ISO 639-2 code)
  • FAO – (i) Food and Agriculture Organization
  • FAPA – Fellow of the American Psychological Association
  • FAPHA – Fellow of the American Public Health Association
  • FAQ – (a/i) Frequently Asked Questions (sometimes pronounced "fak")
  • FARC – (a) Fuerzas Armadas Revolucionarias de Colombia (Spanish, "Revolutionary Armed Forces of Colombia")
  • FARDC – (a) "Military of the Democratic Republic of the Congo
  • FARP – (a) Forward Arming and Refuelling Point / Forward Area Rearm/refuel Point
  • fas – (s) Persian language (ISO 639-2 code)
  • FAS
  • (i) Federation of American Scientists
  • Fetal Alcohol Syndrome
  • FASCAM – (p) Family of Scatterable Mines
  • FASD – (i) Fetal Alcohol Spectrum Disorder
  • FASEB – (a/i) Federation of American Societies for Experimental Biology
  • FAST
  • (a) Face, Arm, Speech, Time (stroke symptoms)
  • Five hundred meter Aperture Spherical Telescope (Chinese radio telescope)
  • Fixing America's Surface Transportation Act (U.S. legislation)
  • FAT – (a) Field Artillery Tractor – File Allocation Table
  • FAVS – (a) Future Armoured Vehicle System
  • FAW
  • (i) Football Association of Wales
  • First Automobile Works (Chinese automobile manufacturer)

FB

  • FB – Facebook, An on-line social network
  • FBCB2 or FBCB<sup>2</sup> – (p) Force&nbsp;XXI Battle Command, Brigade-and-Below
  • FBCS – (i) Fellow of the British Computer Society
  • FBI – (i) Federal Bureau of Investigation
  • FBIS – (i) Foreign Broadcast Information Service
  • FBIDST – (i) Fellow of the British Institute of Dental and Surgical Technologists
  • FBLA (i) Future Business Leaders of America {Jr & HS Group}
  • FBM – (s) Board foot
  • FBR
  • (i) Fast Breeder Reactor
  • Foundation for Biomedical Research
  • Friedman, Billings, Ramsey (now known as Arlington Asset Investment)
  • FBS
  • Federal Bureau of Statistics (Pakistan)
  • Fetal bovine serum
  • Football Bowl Subdivision (U.S. college football)
  • Fukuoka Broadcasting Corporation

FC

  • fC – (s) Femtocoulomb
  • FC
  • (i) Fire Control
  • Football Club
  • (s) Funnel Cloud (METAR Code)
  • FCA
  • (i) Fellowship of Christian Athletes
  • Fiat Chrysler Automobiles
  • Fraction of Combat Active forces
  • FCC – (i) U.S. Federal Communications Commission
  • FCE – (i) First Certificate in English
  • FCF – (i) Financial Free Cash Flow
  • FCFS – (i) First Come, First Served
  • FCM
  • (i) Federation of Canadian Municipalities
  • Fogarty's Cove Music
  • FCO – (i) UK Foreign and Commonwealth Office
  • FCS
  • (i) Football Championship Subdivision (U.S. college football)
  • Future Combat System
  • FCSB – (i) Fotbal Club Steaua București, a name claimed by two association football clubs in Bucharest – FCSB and CSA Steaua București
  • FCW – (i) Florida Championship Wrestling
  • FCW - Forward Collision Warning, see Collision avoidance system
  • FCZ – (i) Forward Combat Zone

FD

  • FD – (i) Falun Dafa
  • FDA – (i) Food and Drug Administration (U.S.)
  • FDBK – (i) Feedback
  • FDC
  • (i) Federal Detention Center (U.S.)
  • Fire Direction Centre
  • FDDI – (i) Fibre Distributed Data Interface
  • FdI – (i) Fratelli d'Italia (Italian, "Brothers of Italy"), an Italian political party
  • FDI
  • (i) 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 (French, "Defense and Intervention Frigate"), a planned class of French Navy ships
  • FDNY – Fire Department of New York
  • FDR
  • (i) Flight data recorder
  • Franklin Delano Roosevelt

FE

  • Fe – (s) Iron (Latin Ferrum)
  • FE – (i) Fully Exposed (armoured vehicle target, as opposed to Hull-Down)
  • FEAR
  • (a) First Encounter Assault Recon
  • Focus sash Endeavor (Quick) Attack Rattata (or Fucking Evil Annoying Rodent), a last-resort tactic in competitive Pokemon battling
  • FEAST – (a/i) Forum for European-Australian Science and Technology Cooperation
  • FEATS – (a) Festival of European Anglophone Theatrical Societies
  • FEB
  • (i) Federación Española de Baloncesto (Spanish, "Spanish Basketball Federation")
  • Federatie Eredivisie Basketball (Dutch, "Federation Honorary Division (of) Basketball"), the former name of the basketball competition later known in Dutch by the English-language Dutch Basketball League
  • Força Expedicionária Brasileira (Portuguese, "Brazilian Expeditionary Force")
  • FEBA – (a) Forward Edge of the Battle Area
  • fec. – (p) fecit (Latin, "he made it")
  • FED – (a/i) Field emission display
  • FEF – (i) Frontal Eye Field (neurophysiology)
  • FEI – (i) Fédération équestre internationale (French, "International Federation for Equestrian Sports")
  • FEMA
  • (a/i) Farm Equipment Manufacturers Association
  • (a/i) U.S. Federal Emergency Management Agency
  • FENAFUTH – (p) Federación Nacional Autónoma de Fútbol de Honduras (Spanish, "National Autonomous Football Federation of Honduras")
  • FENS – (a/i) Federation of European Neuroscience Societies
  • FEP – (i) Firepower Enhancement Program – Fleet satellite (FLTSAT) Extremely high frequency (EHF) Package
  • FEPAFUT – (p) Federación Panameña de Fútbol (Spanish, "Panamanian Football Federation")
  • FES – (i) Flywheel Energy Storage
  • FEST – (a) Frankfurt English Speaking Theatre
  • FET – (a) Field-effect transistor
  • FEZ – (a/i) Fighter Engagement Zone

FF

  • ff – (s) Fula language (ISO 639-1 code)
  • fF – (s) Femtofarad
  • FF
  • (i) Final Fantasy
  • (p) Firefox (Web browser)
  • FFA
  • (i) 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 (today the National FFA Organization)
  • FFB – (i) Frum From Birth (referring to an observant Jew born into a religiously observant family)
  • FFC – (i) Free For Chat
  • FFCM — Fellow of the Faculty of Community Medicine (fellowship created in 1972, now replaced by FFPH)
  • FFE – (i) Fukuoka Futures Exchange
  • FFF – (i) Fédération française de football (French, "French Football Federation")
  • FFG – (s) Guided Missile Frigate (hull classification symbol)
  • FFOV – (i) Forward Field Of View
  • FFP - (i) Federally Funded Participation
  • FFPH — Fellow of the Faculty of Public Health, replacing FFPHM
  • FFR – (i) Fédération française de rugby (French, "French Rugby (Union) Federation")
  • FFS – (i) For Fuck's Sake
  • FFT
  • (i) Fast Fourier transform
  • Final Fantasy Tactics

FG

  • FG – (i) Falun Gong
  • fg – (s) Femtogram
  • FG – (s) Fog (METAR Code) – French Guiana (FIPS 10-4 territory code)
  • FGR – (a) Flickr Group Roulette

FH

  • fH – (s) Femtohenry
  • FHFIF – (i) Foster's Home for Imaginary Friends
  • FHI – (i) Family Health International, Fuji Heavy Industries, Ltd.

FI

  • fi – (s) Finnish language (ISO 639-1 code)
  • FI – (s) Finland (ISO 3166 digram; FIPS 10-4 country code)
  • FIA – (a) Fédération internationale de l'automobile (French "International Automobile Federation")
  • FIAT – (a) Fabbrica Italiana Automobili Torino (Italian "Italian Car Factory of Turin")
  • FIBA – originally (a) Fédération internationale de basket-ball amateur (French, "International Amateur Basketball Federation"); since 1989, (p) Fédération internationale de basket-ball<!--In French, the proper spelling is "basket-ball".-->
  • FIBUA – (i/a) Fighting In Built-Up Areas
  • FIC – (i) Fellowship for Intentional Community
  • FID – (i) Foreign Internal Defence
  • FIDÉ – (a) Fédération internationale des échecs (French, "World Chess Federation")
  • FIE – (i) Fly-In Echelon
  • FIFA – (a) Fédération internationale de football association (French, "International Association Football Federation")
  • FIFe – (a) Fédération internationale féline (French, "International Feline Federation")
  • FIFO – (a) First In, First Out
  • FIFRA – (a) Federal Insecticide, Fungicide, and Rodenticide Act
  • FIG
  • (i) Fédération internationale des géomètres (French, "International Federation of Surveyors")
  • Fédération internationale de gymnastique (French, "International Federation of Gymnastics")
  • Feminist Improvising Group (music ensemble)
  • fij – (s) Fijian language (ISO 639-2 code)
  • FILA – (a) Fédération internationale des luttes associées (French, "International Federation of Associated Wrestling Styles"), former name of the sport governing body now known as United World Wrestling
  • FILO – (a) First In, Last Out (see also LIFO)
  • FIMPT – (i) Fellow of the Institute of Maxillofacial Prosthetists and Technologists
  • fin – (s) Finnish language (ISO 639-2 code)
  • FIN – (s) Finland (ISO 3166 trigram)
  • FINA – (p/a) Fédération internationale de natation (French, "International Swimming Federation")
  • FIPS – (a) Federal Information Processing Standard
  • FIR
  • (i) Final Inspection Report
  • Federazione Italiana Rugby (Italian, "Italian Rugby (Union) Federation")
  • FIRES – Fever Induced Refractory Epilepsy Syndrome or Febrile Infection-Related Epilepsy Syndrome
  • FIS – (a/i) Fédération internationale de ski (French "International Ski Federation")
  • FISA – (a) Fédération Internationale des Sociétés d'Aviron (French, "International Federation of Rowing Associations")
  • FISH – (a) Fluorescence In-Situ Hybridisation
  • FiST – (p) Fire Support Team
  • FITS – (a) Flexible Image Transport System
  • FIU – (i) Florida International University

FJ

  • fj – (s) Fijian language (ISO 639-1 code)
  • fJ – (s) Femtojoule
  • FJ – (s) Fiji (ISO 3166 digram; FIPS 10-4 country code)
  • FJD – (s) Fiji dollar (ISO 4217 currency code)
  • FJI – (s) Fiji (ISO 3166 trigram)
  • FJN – (a) Financial Job Network

FK

  • fK – (s) Femtokelvin
  • FK – (s) Falkland Islands (ISO 3166 code)
  • FKA - (i) Formerly known as
  • FKP – (s) Falkland Islands pound (ISO 4217 currency code)
  • FKSM – (i) Fort Knox Supplemental Manual
  • FKT – (i) Fastest known time

FL

  • fl – (p) floruit (Latin, "living") (genealogy)
  • fL – (s) Femtolitre
  • FL – (s) Florida (postal symbol)
  • FLA – (p) Florida – (i) Front Line Assembly – Future Large Aircraft
  • FLAC – (a/i) Free Lossless Audio Codec
  • FLAC – (a/i) Free Legal Advice Centres
  • FLAK – (p) FLugAbwehrKanone (German for "Anti-Aircraft Guns")
  • FLB – (i) Forward Logistics Base
  • FLET – (a/i) Forward Line of Enemy Troops
  • FLG – (p) Falun Gong
  • FLIP – (p) Flight Information Publication
  • FLIR – (i) Forward Looking InfraRed (sensor)
  • FLK – (s) Falkland Islands (ISO 3166 trigram)
  • Also Funny-Looking Kid, a medical initialism for a young child with a mostly normal but somewhat unusual ("funny") appearance that raises the suspicion index for congenital disorder. Used only before a medical diagnosis has determined the cause of the unusual appearance.
  • FLOT – (a/i) Forward Line of Own Troops
  • FLSA – (i) Fair Labor Standards Act
  • FLQ – (i) Front de libération du Québec (French for "Québec Liberation Front")
  • FLTSAT – (p) Fleet Satellite
  • FLTSATCOM – (p) Fleet Satellite Communication System

FM

  • FM – (s) Factory Mutual http://fmglobal.com
  • fm – (s) Femtometre
  • Fm – (s) Fermium
  • FM
  • (i) Federal Magistrate (Australian post-nominal)
  • (s) Federated States of Micronesia (postal symbol; ISO 3166 digram; FIPS 10-4 territory code)
  • (i) Field Manual
  • Flight Manager
  • Frequency Modulation (electronics)
  • FMC
  • (i) Federal Magistrates' Court (an Australian federal court, formerly FMS)
  • Food Machinery Corporation (original name of the company now known as FMC Corporation)
  • FMCA – (i) Federal Magistrates' Court of Australia (used for citing decisions of the FMC other than family law decisions)
  • FMCAfam – (i) Federal Magistrates' Court of Australia: family (used for citing family law decisions of the FMC)
  • FME – (i) Formal Methods Europe
  • FMECA – (i) Failure Modes and Effect Criticality Analysis
  • FMJD – (i) Fédération Mondiale du Jeu de Dames
  • FMLA – (i) Family Medical Leave Act
  • Fmr – Former (as in "Fmr. president")
  • fMRI – (i) Functional Magnetic Resonance Imaging
  • FMS
  • (i) Federal Magistrates Service (an Australian federal court, now FMC)
  • (i) Flight Management System
  • Foreign Military Sales
  • FMSF – (i) False Memory Syndrome Foundation
  • FMTV – (i) Family of Medium Tactical Vehicles
  • FMCG – (i) Fast-Moving Consumer Goods

FN

  • fN – (s) Femtonewton
  • Fabrique Nationale (Belgian firearms manufacturer)
  • FNA – (i) Functional Needs Analysis
  • FNaF - (a) Five Nights at Freddy’s (horror video game series)

FO

  • fo – (s) Faroese language (ISO 639-1 code)
  • FO
  • (s) Faroe Islands (ISO 3166 digram; FIPS 10-4 territory code)
  • (i) Force Operations (military)
  • Forward Observer
  • Frame Optional (military symbology)
  • FOAD – (a) Fuck Off And Die
  • FOAF – (a) Friend Of A friend
  • FoB – (i) Free On Board (shipping)
  • FOB
  • (i/a) Forward Operating Base
  • Fall Out Boy
  • FOC
  • (i) First of Class
  • Forward of center (measure of weight bias of an arrow)
  • Full Operational Capability
  • FOD - Foreign Object Debris
  • FoE
  • (a/p) Federation of Earth
  • (p) Friends of the Earth
  • FOGC – (i) Federal Oil and Gas Council
  • FOH – (a) Front Of House
  • FOIA – (a) Freedom of Information Act
  • FOM – (a) Federation Object Model
  • FOMO – (a) Fear of missing out
  • FONSI – (a) Finding of No Significant Impact
  • FOO – (a) Forward Observation Officer
  • FOR
  • (i) Field Of Regard
  • Frame Of Reference
  • Fortran – (p) The IBM Mathematical FORmula TRANslating System (programming language)
  • FOS
  • (i) Florida Ornithological Society
  • Full Operational Status
  • FoS – (i) Family of Systems
  • FOSE – (p) Fallout 3 Script Extender
  • FOSE – (a) Federal Office Systems Expo
  • FOT – (i) Free on truck
  • FOTA – (i) Fellow of the Orthodontic Technicians Association
  • FOTC – Flight of the Conchords
  • FOUO – (i) For Official Use Only
  • FOV – (i) Field Of View

FP

  • FP – (s) French Polynesia (FIPS 10-4 territory code)
  • FPF
  • (i) Federação Portuguesa de Futebol ("Portuguese Football Federation" in that language)
  • Final Protective Fire
  • fps – (s) frames per second (motion pictures, television, computer graphics)
  • FPS
  • (i) Fire Prevention System
  • First-person shooter (computer/video games)

FQ

  • FQ – (s) Baker Island (FIPS 10-4 territory code) – French Southern and Antarctic Territories (ISO 3166 digram; obsolete 1979)
  • FQDN – (i) Fully Qualified Domain Name

FR

  • fr – (i) For real
  • fr – (s) French language (ISO 639-1 code)
  • Fr – (s) Francium
  • FR – (s) France (FIPS 10-4 country code; ISO 3166 digram)
  • fra – (s) French language (ISO 639-2 code)
  • FRA
  • (i) Federal Railroad Administration
  • (s) France (ISO 3166 trigram)
  • FRAGO – (p) Fragmentary Order (military)
  • FRAND – (a) Fair, reasonable, and non-discriminatory (concept in standards-setting and intellectual property law)
  • FRCP
  • (i) Federal Rules of Civil Procedure
  • Fellow of the Royal College of Physicians
  • FRICBM – (i) Full Range ICBM
  • frr – (s) North Frisian language (ISO 639-2 code)
  • FRR
  • (s) Falls Road Railroad (reporting mark)
  • (i) Federaţia Română de Radioamatorism (Romanian, "Romanian Amateur Radio Federation")
  • (i) Fix, Rebuild, Replace
  • Federaţia Română de Rugby (Romanian, "Romanian Rugby (Union) Federation")
  • FRO – (s) Faroe Islands (ISO 3166 trigram)
  • FRS
  • (i) Fellow of the Royal Society
  • U.S. Federal Reserve System
  • FRSA – (i) Fellow of the Royal Society of Art
  • FRSL – (i) Fellow of the Royal Society of Literature
  • fry – (s) West Frisian language (ISO 639-2 code)
  • FRY – (i) Federal Republic of Yugoslavia

FS

  • fs – (s) Femtosecond
  • fS – (s) Femtosiemens
  • FS
  • (i) Fire Support (military)
  • (s) French Southern and Antarctic Territories (FIPS 10-4 territory code)
  • FSA
  • (i) Fire Support Area
  • UK Food Standards Agency
  • Functional Solution Analysis
  • FSB
  • (i) Federal'naya Sluzhba Bezopasnosti Rossiyskoi Federatsii (Федера́льная слу́жба безопа́сности Росси́йской Федера́ции, Russian "Federal Security Service of the Russian Federation", succeeded the FSK in 1995)
  • Forward Support Battalion
  • FSC
  • (i) Federal Supply Classification
  • (a) Forest Stewardship Council (ecological pressure group)
  • FSCL – (i) Fire Support Co-ordination Line
  • FSE – (i) Fire Support Element
  • F&SF – (i) (The Magazine of) Fantasy & Science Fiction
  • FSF – (i) Free Software Foundation
  • FSH – (i) Follicle-stimulating hormone
  • FSI – (i) Fuel Stratified Injection
  • FSK – (i) Federal'naya Sluzhba Kontrrazvedki (Федера́льная Слу́жба Контрразве́дки, Russian "Federal Counterintelligence Service", succeeded the KGB in 1991)
  • FSM
  • (s) Federated States of Micronesia (ISO 3166 trigram)
  • (i) Flying Spaghetti Monster (satirical religion)
  • FSO
  • (i) Fire Support Officer
  • Flotilla Staff Officer
  • Foreign Service Officer
  • FSS – (i) Fire Support Station
  • FSSP – (i) Families of Structurally Similar Proteins
  • FST
  • (i) Finance Support Team
  • Finlands Svenska Television (Finland's Swedish-language television)
  • Future Soviet Tank (Cold War era)
  • FSTC – (i) Foreign Science Technology Center (now NGIC)
  • FSV
  • (i) Fire Support Vehicle
  • Fisheries Survey Vessel
  • Flexible Sender Validation
  • Fort St. Vrain
  • Fußball und Sportverein (German "Football and Sport Association", as in FSV Mainz)

FT

  • fT – (s) Femtotesla
  • FTC – (i) Federal Trade Commission
  • FTE – (i) Full Time Equivalent
  • FTL – (i) Faster Than Light
  • FTP – (i) File Transfer Protocol
  • FTS
  • (i) Flight Termination System used during some rocket launches
  • Follow-the-sun
  • Fuck/Forget That/This Shit
  • FTSE – (a/i) Financial Times Stock Exchange ("footsie")
  • FTW – (i) For The Win (a commonly used phrase used online to indicate success), Fuck the World, Forever Together Wherever (gang slogan)

FU

  • FU
  • (s) Smoke (METAR Code)
  • (p) "Fuck You"
  • FUBAR – (a) Fucked/Fouled Up Beyond All Recognition/Repair
  • f/u/b/o – (i) For the use and benefit of (found in legal documents)
  • FUBU - (a) For Us, By Us
  • FUCK – (a) For, Unlawful, Carnal, Knowledge (Van Halen album title)
  • FUD – (a) Fear, Uncertainty & Doubt (marketing strategy)
  • FUGAZI (acronym) – (a) British/American Army slang, then Video Gamer FPS slang for Fucked Up, Got Ambushed, Zipped In.
  • ful – (s) Fula language (ISO 639-2 code)

FV

  • fV – (s) Femtovolt

FW

  • fW – (s) Femtowatt
  • FW – (s) Forward
  • F/W – (i) Fixed Wing
  • FWC – (i) Football World Cup
  • FWD - (a) Front Wheel Drive (automobile transmission type)
  • FWF – (i) Fixed Word Format
  • FWI – (i) French West Indies
  • FWIW – (i) For What It's Worth
  • FWS – (i) U.S. Fish and Wildlife Service
  • FWT – (i) Fresh Water Tank

FX

  • FX – (a) Firefox – Fox Extended – (s) Metropolitan France (ISO 3166 digram; obsolete 1997) – Special effect
  • FXX – (s) Metropolitan France (ISO 3166 trigram; obsolete 1997)

FY

  • fy – (s) West Frisian language (ISO 639-1 code)
  • FY – (i) Fiscal Year – (s) Former Yugoslav Republic of Macedonia (NATO country code)
  • FYA – (i) For Your Agenda
  • FYI – (i) For Your Information
  • FYROM – (a) Former Yugoslav Republic of Macedonia, currently North Macedonia

FZ

  • FZDZ – (s) Freezing Drizzle (METAR Code)
  • FZFG – (s) Freezing Fog (METAR Code)
  • FZRA – (s) Freezing Rain (METAR Code)

References