| Acronym | Definition |
|---|
| TF | To Follow |
| TF | Tierra del Fuego (Argentina province) |
| TF | To Fill |
| TF | Transcription Factor |
| TF | Task Force |
| TF | Toll Free |
| TF | Too Far (chat slang) |
| TF | French Southern Territories (ISO country code, top level domain) |
| TF | Team Fortress (Quake 1) |
| TF | Transformers (toy) |
| TF | Transformation |
| TF | Thin Film |
| TF | Timeframe |
| TF | Tax Free (finance) |
| TF | Telford (postcode, United Kingdom) |
| TF | Time of Flight |
| TF | Transfer Function (mathematics) |
| TF | The Fog (movie) |
| TF | Tissue Factor (blood coagulation) |
| TF | Twisted Fate |
| TF | Transfer Factor |
| TF | Track & Field |
| TF | Treatment Facility (various organizations) |
| TF | Time-Frequency (physics) |
| TF | Time Flies |
| TF | Time Required to Fix |
| TF | Tom Felton (Draco Malfoy actor) |
| TF | Top Fuel (drag racing) |
| TF | Trade Finance (commerce) |
| TF | Total Failure |
| TF | thermoform |
| TF | Trade Facilitation (various organizations) |
| TF | Tactical Fighter |
| TF | Total Field |
| TF | Top Front |
| TF | Terra Firma |
| TF | Territorial Force |
| TF | Tobacco Free |
| TF | Transferrin |
| TF | Timber-Framed (structures) |
| TF | Transport Format |
| TF | Tank Farm |
| TF | Table Football |
| TF | Traditional Foods |
| TF | Till Forbid (newspaper advertising) |
| TF | Teaching Fellow (various universities) |
| TF | Technical Foul (basketball) |
| TF | Transmission Fluid (automotive) |
| TF | Transflash Memory Card (mobile device) |
| TF | Thomson Financial |
| TF | Toenail Fungus |
| TF | TerraForming |
| TF | Terrain Following |
| TF | Tooth Fairy |
| TF | Thunder Force (gaming) |
| TF | Total Film |
| TF | Turbofan |
| TF | Training Film |
| TF | Trade Federation (Star Wars Episode I) |
| TF | Trotteur Francais (France) |
| TF | True Friends |
| TF | Tax Foundation |
| TF | Tell Friends |
| TF | Team Fear |
| TF | Thomsen-Friedenreich (antigen) |
| TF | Tight Frame |
| TF | TechFest (computing website) |
| TF | Trap Flag |
| TF | Too Funny |
| TF | Trigger Finger (stenosing tendovaginitis) |
| TF | Teknologföreningen (Finnish student nation) |
| TF | Tuition Fee |
| TF | Track Foot |
| TF | Target Finish |
| TF | Tamriel Foundry (roleplaying gaming forum) |
| TF | Transfer Frame |
| TF | Teaching-Focused |
| TF | Toad's Factory |
| TF | Two Fluid |
| TF | Test Faulty |
| TF | Trade Focus |
| TF | Transaction Format |
| TF | Tapered Female (pipe fittings) |
| TF | Total Forfeiture |
| TF | Tactical Fusion |
| TF | Testicular Feminization (reproductive pathology) |
| TF | Trace Flag |
| TF | Transmission Factor (radiation exposure) |
| TF | Temperature At Fail |
| TF | Transit Facility |
| TF | Tranche Ferme (Marchés Publics) |
| TF | Terminal File |
| TF | Transient Fault |
| TF | Terminal Forecast |
| TF | Type of Funds (USACE) |
| TF | Thomas-Fermi Approximation |
| TF | Thermal Fine |
| TF | Terminal Flatulance |
| TF | Team Foodland (airsoft) |
| TF | Till Forbidden |
| TF | Transverse Frame (ship component) |
| TF | Taraqee Foundation (Pakistan) |
| TF | Tempered Fury (Everquest Guild) |
| TF | Temporum Felicitas (Latin: Happines of the Times, epigraphy) |
| TF | Tallulah Falls Railway Company |
| TF | Terra Fracta (gaming clan) |
| TF | Team Funnel (skydiving) |
| TF | Trace Filtering |
| TF | Test/Training Facility |
| TF | Tired Fanny |
| TF | Track Fragmentation |
| TF | Traction Fuse |
| TF | Twisted Flex |
| TF | Tube Feeder/Feeding (medical; patient with a gastrostomy tube in place) |