TT, Tt, tt, or .tt may refer to:

Arts and entertainment

Gaming

* ''

Manx TT Super Bike ''Manx TT Super Bike'' is a 1995 arcade racing game developed jointly by Sega AM3 and Sega-AM4. It is a motorcycle racing game built for the Sega Model 2 arcade board. Up to 8 players can race in this game if enough arcade cabinets are link ...

'', an arcade racing game by Sega * ''Tourist Trophy'' (video game), a motorcycle racing game for the PlayStation 2 * T.T., a character in ''

Diddy Kong Racing ''Diddy Kong Racing'' is a 1997 kart racing game developed and published by Rare for the Nintendo 64. The game revolves around Diddy Kong and his friends' attempt to defeat the intergalactic antagonist, a wizard pig named Wizpig, through win ...

Music

* "TT" (song), a song by Twice *

Tritone In music theory, the tritone is defined as a interval (music), musical interval spanning three adjacent Major second, whole tones (six semitones). For instance, the interval from F up to the B above it (in short, F–B) is a tritone as it can be ...

, the musical interval of an augmented fourth or diminished fifth *

Theresa Wayman Theresa Becker Wayman (born June 23, 1980), known professionally as TT, is an American musician, singer-songwriter, and occasional actress, best known as guitarist and vocalist of the indie rock band Warpaint (band), Warpaint. Early life Waym ...

(born 1980), American musician, stage name TT *

Tying Tiffany Tying Tiffany, also known as TT and Tiff Lion, is an Italian electronic music project. The idea of the stage name was born from a photobook by artist Nobuyoshi Araki.

(born 1978), Italian singer, stage name TT

Other arts and entertainment

* ''

The Dominators ''The Dominators'' is the first serial of the sixth season of the British science fiction television series ''Doctor Who'', which originally aired in five weekly parts from 10 August to 7 September 1968. The Second Doctor (Patrick Troughton) a ...

'' (production code: TT), a 1968 ''Doctor Who'' serial * T.T., a fictional character in the film ''

The Forever Purge ''The Forever Purge'' is a 2021 American action horror film directed by Everardo Valerio Gout and written by series creator James DeMonaco, who also produced along with Jason Blum and Michael Bay. Originally intended as the final installment, it ...

'' * Thomas Thorpe (T.T.), the publisher of

Shakespeare's sonnets William Shakespeare (1565 –1616) wrote sonnets on a variety of themes. When discussing or referring to Shakespeare's sonnets, it is almost always a reference to the 154 sonnets that were first published all together in a quarto in 1609. Howe ...

Business and organizations

TT Electronics TT, Tt, tt, or .tt may refer to: Arts and entertainment Gaming * ''Manx TT Super Bike'', an arcade racing game by Sega * ''Tourist Trophy'' (video game), a motorcycle racing game for the PlayStation 2 * T.T., a character in '' Diddy Kong Racing' ...

, a British maker of automotive components * Tom Tailor, a German clothing company *

TT Games TT Games Limited is a British holding company and a subsidiary of Warner Bros. Games. The company was established in 2005 through the merger of developer Traveller's Tales and publisher Giant Interactive (now TT Games Publishing). Its other b ...

, a British software producer *

TT News Agency TT News Agency (Swedish: TT Nyhetsbyrån or simply TT; formerly ''Tidningarnas Telegrambyrå'' until 2013, translates to ''The newspaper's telegram bureau'') is a Swedish news agency, the largest in Scandinavia, owned jointly by the country's new ...

, a Swedish news agency * TT Technologies, a construction equipment manufacturer * ThunderTalk Gaming, a Chinese esports organization *

Tigerair Australia Tiger Airways Australia Pty Ltd, operating as Tigerair Australia, was an Australian low-cost airline. Founded by Tiger Airways Holdings, it commenced services in the domestic airline market on 23 November 2007 as Tiger Airways Australia. It lat ...

(former IATA code: TT), a former low-cost airline *

Toytown Germany Toytown Germany, known as "TT" to its users, was an English-language community website for Germany. It was an information resource, a meeting point and a communication platform for English-speaking foreigners throughout Germany. Website This mo ...

, a website for English-speaking foreigners in Germany *

Order and Justice Order and Justice (, TT), formerly the Liberal Democratic Party (''Liberalų Demokratų Partija'', LDP) was a right-wing national-conservative political party in Lithuania that self-identified as " left-of-centre", at least on economic matters. It ...

(abbreviated TT in Lithuanian), a political party in Lithuania

Language

Tatar language Tatar ( ; or ) is a Turkic languages, Turkic language spoken by the Volga Tatars mainly located in modern Tatarstan (European Russia), as well as Siberia. It should not be confused with Crimean Tatar language, Crimean Tatar or Siberian Tatar ...

(ISO 639-1 code) * TT, an

emoticon An emoticon (, , rarely , ), short for emotion icon, is a pictorial representation of a facial expression using Character (symbol), characters—usually punctuation marks, numbers and Alphabet, letters—to express a person's feelings, mood ...

indicating tears streaming from the eyes *

Totus tuus is a Latin greeting which was routinely used to sign off List_of_Latin_phrases_(T), letters written in Latin, meaning "all yours", often abbreviated as "t.t." (a variation was ). In recent history was used by Pope John Paul II as his personal ...

, a Latin greeting meaning "all yours"

Science and technology

Medicine

Tetanus toxoid Tetanus vaccine, also known as tetanus toxoid (TT), is a toxoid vaccine used to prevent tetanus. During childhood, five doses are recommended, with a sixth given during adolescence. After three doses, almost everyone is initially immune, but ...

, a vaccine to prevent tetanus *

Thrombin time The thrombin time (TT), also known as the thrombin clotting time (TCT), is a blood test that measures the time it takes for a clot to form in the plasma of a blood sample containing anticoagulant, after an excess of thrombin has been added. It is ...

, a coagulation blood test

Computing

* .tt, the country code top-level domain for Trinidad and Tobago *

Template Toolkit The Template Toolkit (TT) is a template engine used primarily for building web sites, but is also suitable for creating any type of digital document, such as a PDF or LaTeX file. Template Toolkit is based on a mini-language and does not allow dir ...

, a Perl template engine *

Transaction translator A USB hub is a device that expands a single Universal Serial Bus (USB) port into several so that there are more ports available to connect devices to a host system, similar to a power strip. All devices connected through a USB hub share the band ...

, a particular unit in USB hubs *

tt-reduction In computability theory a truth-table reduction is a type of reduction from a decision problem A to a decision problem B. To solve a problem in A, the reduction describes the answer to A as a boolean formula or truth table of some finite number o ...

(truth-table reduction), a kind of transformation used in computability theory * (short for teletype), an HTML presentation element that writes text in monospace font

Other science and technology

TT earthing system An earthing system (UK and IEC) or grounding system (US) connects specific parts of an electric power system with the ground, typically the equipment's conductive surface, for safety and functional purposes. The choice of earthing system can ...

(terre-terre), a system of electrical earthing *

Tiny Telephone A phone connector is a family of cylindrically-shaped electrical connectors primarily for analog audio signals. Invented in the late 19th century for tele''phone'' switchboards, the phone connector remains in use for interfacing wired a ...

, a type of phone connector *

Telegraphic transfer Telegraphic Transfer or telex transfer, often abbreviated to TT, is a term used to refer to an electronic funds transfer. Although the term is historic and the technology it describes is no longer in use, the telegraphic transfer name is still us ...

(T/T), a method of transferring money *

Terrestrial Time Terrestrial Time (TT) is a modern astronomical time standard defined by the International Astronomical Union, primarily for time-measurements of astronomical observations made from the surface of Earth. For example, the Astronomical Almanac uses ...

, an astronomical time standard

Sports

Time trial In many racing sports, an sportsperson, athlete (or occasionally a team of athletes) will compete in a time trial (TT) against the clock to secure the fastest time. The format of a time trial can vary, but usually follow a format where each athle ...

, in racing sports, a race against the clock to secure the fastest time *

TT Pro League The TT Premier Football League (formerly known as the TT Pro League) is the Trinidad and Tobago professional league for association football clubs. It is the country's primary football competition and serves as the top division in the Trinidad an ...

, a professional association football league for clubs in Trinidad and Tobago

Motorcycle races

Isle of Man TT The Isle of Man TT or Tourist Trophy races are an annual motorcycle racing event run on the Isle of Man in May and June of most years since its inaugural race in 1907 Isle of Man TT, 1907. The event begins on the UK Spring Bank Holiday at the e ...

, an annual motor-cycle racing event held on the Isle of Man **

TT Zero TT Zero was an electric motorsport event introduced for the 2010 Isle of Man TT races – replaced the similar TTXGP race as a 1-lap (37.733 miles) circuit of the Snaefell Mountain Course. The TT Zero event as an officially sanctioned Isle of ...

, an Isle of Man TT race for solo motorcycles producing low-emissions *

Dutch TT The Dutch Tourist Trophy, also known as the ''TT Assen'', and also sometimes known as the Dutch Motorcycle Grand Prix, is an annual Dutch motorsport event established in 1925 for road racing motorcycles held on the TT Circuit Assen, also known ...

, a motorcycling event, held on the last Saturday of June * Welsh TT, historic motorcycle road races originally held annually on

Pendine Sands Pendine Sands () is a beach on the shores of Carmarthen Bay on the south coast of Wales. It stretches west to east from Gilman Point to Laugharne Sands. The village of Pendine () is close to the western end of the beach. In the early 1900s t ...

, Wales, UK circa 1920 * Welsh TT, historic motorcycle road races originally held annually at

Mynydd Epynt Mynydd Epynt () is an upland region of Mid Wales, within the county of Powys. It is bounded on the south by the upper stretch of the Usk Valley, on the north by the Irfon Valley, and on the east by the Wye Valley. Its western boundary is less ...

, Wales, UK circa 1950

Transportation

Audi TT The Audi TT is a production front-engine, 2-door, 2+2 sports coupé and roadster, manufactured and marketed by Audi from 1998 to 2023 across three generations. For each of its three generations, the TT has been based on consecutive generations ...

, a 2-door sports car produced by Audi * TT (New York City Subway service), a former New York City Subway service, US

Other uses

Therapeutic touch Therapeutic touch (TT), or non-contact therapeutic touch (NCTT), is a pseudoscientific energy therapy which practitioners claim promotes healing and reduces pain and anxiety. "Therapeutic Touch" is a registered trademark in Canada for the and ...

, a pseudoscientific energy therapy *

TT pistol The TT-30, commonly known simply as the Tokarev, is a Soviet-made semi-automatic pistol. It was developed during the late 1920s by Fedor Tokarev as a service pistol for the Soviet Armed Forces and was based on the earlier pistol designs of John M ...

, a Soviet military automatic pistol designed by Fedor Tokarev *

TT scale TT scale (from "table top") is a Rail transport modelling, model railroading scale at 1:120 scale with a track gauge of 12mm between the rails. It is placed between HO scale (1:87) and N scale (1:160). Its original purpose, as the name suggests ...

, a niche model railroading scale *

Trinidad and Tobago Trinidad and Tobago, officially the Republic of Trinidad and Tobago, is the southernmost island country in the Caribbean, comprising the main islands of Trinidad and Tobago, along with several List of islands of Trinidad and Tobago, smaller i ...

(ISO 3166 code) * Trust Territory, a former geopolitical status * TT bar, a ten tola

gold bar A gold bar, also known as gold bullion or a gold ingot, is a quantity of refined metallic gold that can be shaped in various forms, produced under standardized conditions of manufacture, labeling, and record-keeping. Larger varieties of gold ...

* Theban Tombs, discoverer of the tombs of

Theban Necropolis The Theban Necropolis () is a necropolis on the west bank of the Nile, opposite Thebes, Egypt, Thebes (Luxor) in Upper Egypt. It was used for ritual burials for much of the Ancient Egypt, Pharaonic period, especially during the New Kingdom of Egyp ...

, Egypt