# List of acronyms: T

This list contains acronyms, initialisms, and pseudo-blends that begin with the letter T.
For the purposes of this list:
* acronym = an abbreviation pronounced as if it were a word, e.g., SARS = severe acute respiratory syndrome, pronounced to rhyme with cars
* initialism = an abbreviation pronounced wholly or partly using the names of its constituent letters, e.g., CD = compact disc, pronounced cee dee
* pseudo-blend = an abbreviation whose extra or omitted letters mean that it cannot stand as a true acronym, initialism, or portmanteau (a word formed by combining two or more words).
    (a) = acronym, e.g.: SARS – (a) severe acute respiratory syndrome
    (i) = initialism, e.g.: CD – (i) compact disc
    (p) = pseudo-blend, e.g.: UNIFEM – (p) United Nations Development Fund for Women
    (s) = symbol (none of the above, representing and pronounced as something else; for example: MHz – megahertz)
Some terms are spoken as either acronym or initialism, e.g., VoIP, pronounced both as voyp and V-O-I-P.
(Main list of acronyms)

## Contents

* Top
* T0–9 TA TB TC TD TE TF TG TH TI TJ TK TL TM TN TO TP TQ TR TS TT TU TV TW TX TY TZ
* T – (s) Tera – tesla – tritium

## TA

* ta – (s) Tamil language (ISO 639-1 code)
* Ta – (s) Tantalum
* TA
** (i) Target Acquisition
** Teaching Assistant
** (s) teraampere
** (i) Territorial Army (UK)
** (s) Tristan da Cunha (ISO 3166 digram)
* TAA
** (i) Transparency Anti-Aliasing
** (a) Trans Australia Airlines
* TAAC – (i/a) Trans America Athletic Conference, the original name for the US college sports league now known as the ASUN Conference
* TAACOM – (p) U.S. Theater Army Area Command
* TAADCOORD – (p) Theatre Army Air Defence Co-ordinator
* TAAR – (i) Trace Amine-Associated Receptor
* TAC – (a) U.S. Tactical Air Command (1946–1992)
* TACAMO – (p) Take Charge and Move Out (U.S. military)
* TACAN – (p) Tactical Air Navigation
* TACC
** (i) Tactical Air Control Centre
** (USAF) Tanker Airlift Control Center
* TACCO – (p) Tactical Coordinator
* TACCSF – (i) U.S. Theater Aerospace Command & Control Simulation Facility
* TACDAR – (p) Tactical Detection And Reporting
* TACP – (i) Tactical Air Control Party – Technology Applications Certification Program
* TACSOP – (p) Tactical SOP (Standing Operating Procedure)
* TADIL – (p) Tactical Digital Information Link
* TADL – (a) Tactical Air Data Link ("taddle")
* TADSS – (i) Training Aids, Devices, Simulators, and Simulations
* TAF - (i) Trading Activity Fee assessed by FINRA to recover the costs of supervising and regulating firms.
* tah – (s) Tahitian language (ISO 639-2 code)
* TAI – (i) Target[ed] Area of Interest
* TAJ – (i) Tom and Jerry
* TAJT – (i) Tom and Jerry Tales
* TALES – (a) Technical Advice and Lexicon for Enabling Simulation
* tam – (s) Tamil language (ISO 639-2 code)
* TAN – (s) Tanzania (IOC and FIFA trigram, but not ISO 3166)
* TANJ – (a) There Ain't No Justice (used as expletive in the Ringworld novels)
* TANP – (i) Terrain-Aware Network Planner
* TANSTAAFL – (a) There Ain't No Such Thing As A Free Lunch (coined by author Robert A. Heinlein in his The Moon Is a Harsh Mistress)
* TAPPS – (a) Texas Association of Private and Parochial Schools
* TARDIS – (a) Time And Relative Dimension In Space (from Doctor Who)
* TARP – (a) Transparency Accountability Rights for Parents (coined by Karen Plumridge, founder of Black Ribbon Gold Heart)
* TAROT – (a) Télescope à action rapide pour les objets transitoires (French, "Transient Object Rapid Action Telescope")
* TAS – Tasmania (postal symbol)
* TASER – (a) Thomas A. Swift's Electric Rifle
* TASM – (i) Tactical Air-to-Surface Missile
* tat – (s) Tatar language (ISO 639-2 code)
* TAT – (i) Tourism Authority of Thailand
* TATP – (p) TriAcetone TriPeroxide
* TADC - (i) The Amazing Digital Circus

## TB

* Tb – (s) Terbium
* TB – (p) Tuberculosis
* TBA – (i) to be announced
* TBBPA – (p) TetraBromoBisPhenol-A
* TBC – (i) to be confirmed, to be continued
* TBD – (i) "to be documented", "to be determined", or "to be decided"
* TBD – (i) Torpedo Boat Destroyer
* TBF – to be fair
* TBGRI – (i) Tropical Botanic Garden and Research Institute, India
* TBH – (i) to be honest
* TBL – (i) Turkish Basketball League
* TBM – (i) tactical ballistic missile, theatre ballistic missile
* TBS – (i) Turner Broadcasting System
* TBT – (p) Tributyltin

## TC

* TCC – (s) Tarrant County College
* Tc – (s) Technetium
* TC – (s) Teracoulomb – Turks and Caicos (ISO 3166 digram) – United Arab Emirates (FIPS 10-4 country code; from Trucial Coast States)
* TCA – (i) Transformational Communications Architecture – (s) Turks and Caicos (ISO 3166 trigram)
* TCAS – (i) Traffic Collision Avoidance System
* TCAA – (i) Top Counter-Assault Agents
* TCBY - (i) The Country's Best Yogurt
* TCCCS – (i/a) Tactical Command, Control, and Communications System ("ticks")
* TCD – (s) Chad (ISO 3166 trigram)
* TCG – (i) Trusted Computing Group – Türkiye Cumhuriyeti Gemisi
* TCHD – (i) Truck Cargo Heavy Duty
* TCL – (i) Tool Command Language
* TCM – (i) Turner Classic Movies
* TCP – (i) Traffic Control Point – Transmission Control Protocol – Trichlorophenol
* TCU – (i) Texas Christian University
* TCWMS – (i) Tele-Center Workforce Management System
* TCW – (i) Tasty Coma Wife

## TE

* te – (s) Telugu language (ISO 639-1 code)
* Te – (s) Tellurium
* TE – (i) Tactical Exploitation – (p) Testosterone to Epitestosterone ratio – (i) Tight end (American football; position generally not used in modern Canadian football)
* TEAL – (a) Tasman Empire Airways Limited
* Team – (a) Together everyone achieves more
* TEAMS – (a) The East African Marine System (fiber optic cable)
* TED – (a) Technology Entertainment Design prize
* TEEL – parts of a body paragraph in an essay: * T - Topic sentence E - Explanation E - Evidence L - Link
* TEETH – (a) Tried Everything Else, Try Homeopathy (medical diagnosis in-joke)
* tel – (s) Telugu language (ISO 639-2 code)
* TEL – (a/i) Transporter, Erector and Launcher
* TELAR – (a) Transporter, Erector, Launcher And Radar
* TEMO – (a) Training, Exercise, and Military Operations
* TENCAP – (p) Tactical Exploitation of National Capabilities
* TER's(Stargate) – Transphase Emission Rods
* TERS – (i) Tactical Event Reporting System
* TES – (i) Tactical Event System
* TEST – (a) Thesaurus of Engineering and Scientific Terms
* TEU – (i) Twenty-foot equivalent unit (cargo capacity)
* TeVeS – (p) Tensor Vector Scalar theory

## TF

* TF –
** (s) French Southern Territories (ISO 3166 digram)
** (i) Task Force
** (s) Terafarad
** (?) Too Far
** (i) Team fortress (hence TF2 is Team Fortress 2)
** Transformers
* T/F – (i) True/False (=Yes/No)
* TFG
** (i) Task Force Games (defunct tabletop game company)
** Tiny Friendly Giant (automobile engine developed by Koenigsegg)
** Transferoviar Grup (Romanian railway company)
* TFMPP – (p) Trifluorophenylmethylpiperazine
* TFR – (i) Total Fertility Rate
* TFT – (i) Thin-Film Transistor
* TFTP –
** (i) Trivial File Transfer Protocol
** (i) Terrorist Finance Tracking Program

## TG

* tg – (s) Tajik language (ISO 639-1 code)
* Tg – (s) Teragram
* TG – (s) Togo (ISO 3166 digram)
* TGA – (s) Tonga (IOC and FIFA trigram, but not ISO 3166)
* TGB – (i) Tres grande bibliothèque (French, "Very Large Library"), a sarcastic nickname for the Bibliothèque nationale de France
* TGIF – (i) Thank God It's Friday, Toes Go In First
* tgk – (s) Tajik language (ISO 639-2 code)
* tgl – (s) Tagalog language (ISO 639-2 code)
* TGO – (s) Togo (ISO 3166 trigram)
* TGT
** (p) Target (also the ticker symbol for Target Corporation)
** (i) Ticket Granting Ticket (computer security)
** (i) Tyrese, Ginuwine, Tank – see TGT (group) for their collaboration
* TGV
** (i) Tanjong Golden Village (Malaysian cinema chain)
** (p) Tanora malaGasy Vonona (Malagasy, "Young Malagasies Determined" – political party)
** (i) Test Generation with Verification
** Train à grande vitesse (French for "High-Speed Train")

## TH

* th – (s) Thai language (ISO 639-1 code)
* Th – (s) Thorium
* TH – (s) Terahenry – Thailand (ISO 3166 and FIPS 10-4 country code digram)
* tha – (s) Thai language (ISO 639-2 code)
* THA – (s) Thailand (ISO 3166 trigram)
* THAAD – (a/i) Terminal High Altitude Area Defence
* THB – (s) Thai baht (ISO 4217 currency code)
* THEGENTRY – (a) The High-End Group of Earth's New Technologies Research Yield
* THEL – (a) Tactical High Energy Laser ACTD
* THG – (p) Tetrahydrogestrinone
* ThG – (p) Graduate of Theology
* THSU - (a) Texas Health and Science University

## TI

* ti – (s) Tigrinya language (ISO 639-1 code)
* Ti – (s) Tebi – Titanium
* TI – (s) Tajikistan (FIPS 10-4 country code) – (i) Thermal Imaging – Threat Identification – Training Instructor – Texas Instruments
* TIA – (i) Total Information Awareness initiative
* TIA – (i) Transient Ischemic Attack
* TIALD – (i) Thermal Imaging and Airborne Laser Designation
* TIAA-CREF – (i, pronounced as "T-I-A-A-cref") Teachers Insurance and Annuity Association – College Retirement Equities Fund
* TIBS – (a) Tactical Information Broadcast System
* TIC – (a) Troops In Contact
* TID – (p) Target Identification – (i) ter in die (Latin, "three times daily")
* TIGERS – (a) Topologically Integrated Geographic Encoding and Referencing System
* TIM – (a) Technical Information Memorandum – Technical Interchange Meeting – Toxic Industrial Material – Telecom Italia Mobile
* TIMS – (a) Tactical Internet Management System – The Institute of Management Sciences – The International Molinological Society – Thermal Infrared Multispectral Scanner – Thermal Ionization Mass Spectrometry – Travel Information Management Services – Tuberculosis Information Management System
* TINC – (a) There Is No Cabal
* TINY – That Is, Not You (internet slang)
* TIP – (a) Thermal Identification Panel
* tir – (s) Tigrinya language (ISO 639-2 code)
* tits – Toes in the Sand

## TJ

* TJ – (s) Tajikistan (ISO 3166 digram) – Terajoule
* TJD – (i) Truncated Julian Day
* TJK – (s) Tajikistan (ISO 3166 trigram)
* TJS – (s) Tajik somoni (ISO 4217 currency code)

## TK

* tk – (s) Turkmen language (ISO 639-1 code)
* TK – (s) Terakelvin – Tokelau (ISO 3166 digram)
* TKBL – (i) Türkiye 1. Kadınlar Basketbol Ligi, the Turkish-language name of the Turkish Women's Basketball League
* TKL – (s) Tokelau (ISO 3166 trigram)
* TKM – (s) Turkmenistan (ISO 3166 trigram)

## TL

* tl – (s) Tagalog language (ISO 639-1 code)
* Tl – (s) Thallium
* TLPM – T1 Line Performance Monitor
* TL
** (i) Team Leader
** (s) Teralitre
** Timor-Leste (ISO 3166 digram)
** (p) ThermoLuminescence
* TL;DR (i) – Too long; didn't read
* TLATOJL – The Life and Times of Juniper Lee
* TLA
** (i) Three-Letter Abbreviation/Acronym
** (ii) 'Three-Letter Agency' (i.e. CIA, FBI, NSA, etc.)
** (i) Temporal light artefacts
* TLAC
** (i) Total Loss Absorbency Capacity
** (ii) The Light Aircraft Company
* TLAM – (i) Tomahawk Land Attack Missile
* TLAR
** (i) That Looks About Right (chat shorthand)
** (ii) Transporter-Launcher And Radar
* TLC
** (i) Tender Loving Care
** The Learning Channel (now known strictly by the initials)
** Thin-layer chromatography
** T-Boz, Lefteye, Chilli
** Tables, Ladders, and Chairs (type of professional wrestling match)
* TLD
** (i) Thermoluminescent Dosimeter
** Top-Level Domain
* TLE
** (i) Temporal light effects
* TLI
** (i) Temporal light interference
* TLM
** (i) Traditional Latin Mass
** Tridentine Latin Mass
** Transaction Lifecycle Management
** (i) Temporal light modulation
* TLS
** (s) Timor-Leste (ISO 3166 trigram)
** (i) Times Literary Supplement

## TM

* Tm
** (s) Terameter
** Thulium
* TM
** (i) Technical Manual
** Theater Missile
** Thematic Mapper
** (p) trademark (often written in small superscript type: $^{TM}$ or ™)
** (i) Turing machine
** (s) Turkmenistan (ISO 3166 digram) Tympanic Membrane
* TMA
** (i) Terminal Maneuvering Area (restricted flying zone)
** Texas Medical Association
** Tristeza y muerte de agave (Spanish, "wilting and death of agave") – a disease affecting the blue agave, from which the popular spirit tequila is produced
* TMAP – (a/i) Texas Medication Algorithm Project
* TMC – (i) The Movie Channel
* TMD – (i) Theater Missile Defense
* TMDK – (i) The Mighty Don't Kneel (Australian professional wrestling stable also active in Japan)
* TMI – (i) Too Much Information
* TMJ – (i) TemporoMandibular Joint (syndrome)
* TMM – (s) Turkmen manat (ISO 4217 currency code)
* TMNT – (i) Teenage Mutant Ninja Turtles
* TMO
** (i) Table Mountain Observatory
** Television match official (rugby union)
* TMP
** (s) East Timor (ISO 3166 trigram; obsolete 2002)
** (p) Temporary
* TMPG – (i) Transparent Multiplatform Gateway
* TMR – (i) Twin Main Rotors (helicopter type)
* TMS – (i) Transcranial Magnetic Stimulation
* TMT – (i) Thirty Meter Telescope
* TMTOWTDI – (i) There's More Than One Way To Do It (from Perl)
* TMZ – (i) Thirty-Mile Zone, an area in and around Los Angeles considered "local" under entertainment industry union work rules

## TN

* tn – (s) Tswana language (ISO 639-1 code)
* TN
** (s) Tennessee (postal symbol)
** Teranewton
** Tonga (FIPS 10-4 country code)
** Tunisia (ISO 3166 digram)
* TNA – (i) Total Nonstop Action Wrestling, a former name of the professional wrestling promotion now known as Impact Wrestling
* TND – (s) Tunisian dinar (ISO 4217 currency code)
* TNO – (i) Trans-Neptunian Object
* TNT
** (i) Thomas Nationwide Transport, an Australian company that was one of the predecessors to the PostNL (previously TNT N.V) and the current TNT Express
** (p) TriNitroToluene
** (a/i) Turner Network Television

## TO

* to – (s) Tongan language (ISO 639-1 code)
* T/O – (i) Theatre of Operations
* TO
** (s) Togo (FIPS 10-4 country code)
** Tonga (ISO 3166 digram)
* TOA
** (i) Table Of Authorities
** Total Obligation Authority (accounting)
* TOAD
** (a) Temporary, Obsolete, Abandoned, or Derelict site (urbanism)
** Towed Optical Assessment Device
* TOBS – (a) Time of OBServation
* TOC
** (a/i) Table Of Contents
** Tactical Operations Centre
** (i) Temporo-Occipital transition Cortex
** Top of Concrete
* To-do – (s) To-do-List
* TOG – (s) Togo (IOC and FIFA trigram, but not ISO 3166)
* TOGS – (a) Thermal Observation Gunnery Sight
* TOMS – (a) Total Ozone Mapping Spectrometer (satellite instrument)
* ton – (s) Tongan language (ISO 639-2 code)
* TON – (s) Tonga (ISO 3166 trigram)
* TOP – (s) Tongan pa'anga (ISO 4217 currency code)
* TOS
** (a) Tape Operating System
** Terms of service
** The Original Series, used to distinguish the first Star Trek TV series from other parts of the media franchise
** Tramiel Operating System
* TOT – (i) Time On Target
* TOW – (a) Tube-launched, Optically tracked, Wire-guided (anti-tank missile)

## TP

* TP
** (s) East Timor (ISO 3166 digram; obsolete 2002)
** São Tomé and Príncipe (FIPS 10-4 country code)
** (i) Training Practice
** Trident Ploughshares
* TPE – (s) Chinese Taipei (IOC and FIFA trigram for the country also known as Taiwan)
* TPI – (i) The point is
* TPO – (p) Thrombopoietin
* TPS – (i) The Pennington School
* TPTB – (i) The Powers That Be (often used to refer to the people responsible for the content of TV series or movies)

## TQ

* TQ – (i) Top Qualifier (similar to Pole Position in car racing)

## TR

* tr – (s) Turkish language (ISO 639-1 code)
* TR – (s) Turkey (ISO 3166 digram)
* TRA – (i) Technology Readiness Assessment
* TRAC – (p) (U.S. Army) TRADOC Analysis Center
* TRACON – (a) Terminal Radar Approach Control
* TRADOC – (p) (U.S. Army) Training and Doctrine Command
* TRAIN – (p) Tourist Railway Association, Inc.
* TRANSCOM – (p) U.S. Transportation Command
* TRAP – (p) Tactical Receive equipment and related Applications
* TRASANA – (p) TRADOC Systems Analysis Agency
* TRD – (i) Towed Radar Decoy
* TRIGAT – (p) Third Generation Antitank (missile)
* TRIPS - (a) Trade-Related Aspects of Intellectual Property Rights
* TRL – (i) Technology readiness level
* Trp – (s) Troop
* TRP
** (i) Target Reference Point
** (p) Time of Reporting
* TRPF – (i) Tendency of the rate of profit to fall
* TRU – (a) Transuranic
* TRUEX – (p) Training in Urban Environment Exercise
* TRW – (i) Thompson Ramo Wooldridge Inc.
* TRY – (s) Turkish lira (ISO 4217 currency code)

## TS

* ts – (s) Tsonga language (ISO 639-1 code)
* Ts – (s) Terasecond
* TS
** (s) Terasiemens
** Thunderstorm (METAR code)
** Tunisia (FIPS 10-4 country code)
** (i) TinySex
** Transsexual
** (i) "Tough Sh*t"
* TSA
** (i) Theatre Storage Area
** Time Slot Allocation
** Transportation Security Administration
** The Salvation Army
* TSCA – (a) Toxic Substances Control Act ("tosca")
* TSEC – (i) Transmission Security Encryption Code
* TSL – (i) Transportation Security Laboratory
* tsn – (s) Tswana language (ISO 639-2 code)
* TSN
** (i) The Sporting News (historic name of the periodical now known as Sporting News)
** The Sports Network
* tso – (s) Tsonga language (ISO 639-2 code)
* TSO
** (i) The Stationery Office (was HMSO until 1996)
** (U.S.) TRICARE Support Office
** (i) Trans-Siberian Orchestra (band)
* TSOP
** (i) Tactical Standing Operation Procedure
** The Sound of Philadelphia (classic 1970s R&B instrumental)
* TSR – many, including terminate-and-stay-resident (program)
* TSSIA – (i) the subject says it all

## TT

* tt – (s) Tatar language (ISO 639-1 code)
* TT
** (s) Teratesla
** (i) Terrestrial Time
** Tourist Trophy (Motorcycle sport)
** (s) Trinidad and Tobago (ISO 3166 digram)
* TTBAO - Things To Be Aware Of
* TTCT – Torrance Tests of Creative Thinking
* TTD – (s) Trinidad and Tobago dollar (ISO 4217 currency code)
* TTO – (s) Trinidad and Tobago (ISO 3166 trigram)
* TTFN – (i) Ta Ta For Now
* TTL
** (i) Tax, Title, License
** (i) Through-the-lens (photography)
** Time 'till live
** Time to live
** Transistor–transistor logic
* TTP
** (i) Tactics, Techniques, and Procedures
** Thrombotic thrombocytopenic purpura
** Trailer Transfer Point
* TTTEAF – Thomas the Tank Engine and Friends
* TTY – (i) TeleTYpewriter (Printer)
* TTYL – (i) Talk To You Later (Internet slang)
* TTZ – (p) Tetrazolium

## TU

* TU – (i) Technische Universität (German for "Technical University") – Thammasat University (Thailand) – (s) Turkey (FIPS 10-4 country code)
* TUC – (i) Trades Union Congress
* TUG – (a) TeX Users Group
* TUI – (a/i) Text-based user interface (cf. CLI), among other uses
* tuk – (s) Turkmen language (ISO 639-2 code)
* TUN – (s) Tunisia (ISO 3166 trigram)
* TUNS – (i) Technical University of Nova Scotia
* Tur – (s) Turkish language (ISO 639-2 code)
* TUR – (s) Turkey (ISO 3166 trigram)
* T.U.R.D. (acronym) Tactical Urban Response Department
* TUSK – (a) Tank Urban Survival Kit
* TUV – (s) Tuvalu (ISO 3166 trigram)

## TV

* Tv – (i) Time value, a designation seen on some camera dials for shutter priority mode
* TV
** (i) Television
** (s) Teravolt
** (i) Transvestite
** (s) Tuvalu (ISO 3166 and FIPS 10-4 country code digram)
* TVA – (i) Tennessee Valley Authority
* TVG
** (p/i) Television Games (Network)
** (i) Tick, Very Good, Often used by School Teachers when marking homework etc. (Tick VG)
* TVR – (i) TreVor (Wilkinson) Racing
* TVS – (i) Tornado vortex signature

## TW

* TWA - Trans World Airlines
* tw – (s) Twi language (ISO 639-1 code)
* TW – (s) Republic of China (Taiwan) (ISO 3166 and FIPS 10-4 country code digram) – terawatt
* TWAIN – (a) Technology Without An Interesting Name
* TWD – (s) Taiwan dollar (ISO 4217 currency code)
* TWE – (a) Trans World Entertainment
* twi – (s) Twi language (ISO 639-2 code)
* TWI – (i) The Welding Institute
* TWN – (s) Republic of China (Taiwan) (ISO 3166 trigram)
* TWP – (i) Technical Working Paper
* Twp - township
* TWS – (i) Thermal Weapon Sight – Track While Scan
* TWT - traveling wave tube
* TWX - telex
* TWIP – (a) Take What Insurance Pays – When a surgeon agrees to accept a lower payment than he ordinarily would for a procedure and not charge the patient the difference

## TX

* TX – (s) Texas (postal symbol) – Transmit – Turkmenistan (FIPS 10-4 country code)
* TXV – Thermostatic Expansion Valve

## TY

* ty
** (s) Tahitian language (ISO 639-1 code)
** (i) Thank you (Internet chat abbreviation)
* TYT – wikt:take your time (Internet chat abbreviation)

## TZ

* TZ – (s) Tanzania (ISO 3166 and FIPS 10-4 country code digram)
* TZA – (s) Tanzania (ISO 3166 trigram)
* TZC – (p) Tetrazolium chloride
* TZS – (s) Tanzanian shilling (ISO 4217 currency code)