| F&R | Front and Rear 
| Others |
| F/R | Flared Rudder
| Others |
| FR | F***, Really?
| Others |
| FR | Factory Repair
| Others |
| FR | Faith And Reflection
| Others |
| FR | Fall River, Massachusetts
| Others |
| FR | Famous Reporter
| Others |
| FR | Famous Ride
| Others |
| FR | Fanaroff-Riley
| Others |
| FR | Farb Rausch
| Others |
| FR | Farmer Refuted
| Others |
| FR | Fast Recovery
| Others |
| Fr | Father
| Others |
| FR | Father Right
| Others |
| FR | Federal Register
| Others |
| FR | Federal Regulation
| Others |
| FR | Federal Regulations
| Others |
| FR | Fedral Register
| Others |
| FR | Fernando Roberto
| Others |
| FR | Ferry Range
| Others |
| FR | Field Report
| Others |
| FR | Fielding Runs
| Others |
| FR | Fierce Remake
| Others |
| FR | Fiesta Red
| Others |
| FR | Figure Reference
| Others |
| FR | File for Reading
| Others |
| FR | File Registry
| Others |
| FR | Final Report
| Others |
| FR | Final Rule
| Others |
| FR | Final Rules
| Others |
| FR | Financial Responsibility
| Others |
| FR | Fing Rubbish
| Others |
| FR | Fire Red
| Others |
| FR | Fire Resistance
| Others |
| FR | Fire Resistant
| Others |
| FR | Fire Retardant
| Others |
| FR | Fire Retardent
| Others |
| FR | Fire Road
| Others |
| FR | Fire/Rescue
| Others |
| FR | Fireman Recruit
| Others |
| FR | Firing Room
| Others |
| FR | First Reader
| Others |
| FR | First Registration
| Others |
| FR | First Responder
| Others |
| FR | Fitting Response
| Others |
| FR | Flame Resistant
| Others |
| FR | Flame Retardant
| Others |
| FR | Flat Rack
| Others |
| FR | Flat Rate
| Others |
| FR | Flawed Reason theory
| Others |
| FR | Flight Recorder
| Others |
| FR | Flight Rule
| Others |
| FR | Floating Reed
| Others |
| FR | Floor Rug
| Others |
| FR | Florecitas Rosas
| Others |
| FR | Flow Rate
| Others |
| FR | Flying Reptiles
| Others |
| FR | Folate Receptor
| Others |
| FR | Fold Recognition
| Others |
| FR | Folder Redirection
| Others |
| FR | For Real
| Others |
| FR | For real or f**king right or f**king really
| Others |
| FR | For Reference
| Others |
| FR | For Reply
| Others |
| FR | for Ryanair
| Others |
| FR | Forest Reserve
| Others |
| FR | Forest Road
| Others |
| FR | Forest Root
| Others |
| FR | Forest Row
| Others |
| FR | Forgotten Realms
| Others |
| FR | Form Report
| Others |
| FR | Form Run
| Others |
| FR | Former Republic
| Others |
| FR | Formula Racing
| Others |
| FR | Fraal (Netherlands coin grade equivalent to Fine)
| Others |
| FR | Fractional
| Others |
| FR | Fractional Range
| Others |
| FR | FRame
| Others |
| FR | Frame Relay
| Others |
| FR | France
| Others |
| FR | Francium
| Element |
| FR | Frankfurter Rundschau
| Others |
| FR | FRansizca
| Others |
| FR | Frau
| Others |
| FR | Frederick Rex
| Others |
| FR | Free Radical
| Others |
| FR | Free Ride
| Others |
| FR | Freedom Right
| Others |
| FR | Freiburg
| Others |
| FR | FReitag
| Others |
| fr | French
| Others |
| FR | Frequency of Respiration
| Others |
| FR | Frequency Response
| Others |
| FR | Freshman
| Others |
| FR | Friburgo
| Others |
| FR | Friday
| Others |
| FR | Friend Request
| Others |
| FR | Frightened Rabbit
| Others |
| FR | Front Radiating
| Others |
| FR | Front Right
| Others |
| FR | Frosinone (Provence)
| Others |
| Fr | Froude number
| Others |
| FR | Frugal Realm
| Others |
| FR | Fruitful Rim
| Others |
| FR | Fuel Retailing
| Others |
| FR | Fujitsu RISC (Reduced Instruction Set Computing)
| Others |
| FR | Full Range
| Others |
| FR | Full Rate
| Others |
| FR | Fumbles Recovered
| Others |
| FR | Functional Relation
| Others |
| FR | Functional Requirement
| Others |
| FR | Functional Requirements
| Others |
| FR | Fund Raising
| Others |
| FR | Fusil Reformado
| Others |
| Fr. | French gauge [diameter]
| Others |
| fr. | French [gauge]
| Others |