{{Technical reasons|T_T|the keyboard symbol|List of emoticons}} {{wiktionary|TT|Tt|tt|.tt}} '''TT''', '''Tt''', '''tt''', or '''.tt''' may refer to: {{TOC right}} ==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''
===Music=== * "TT" (song), a song by Twice * Tritone, the musical interval of an augmented fourth or diminished fifth * Theresa Wayman (born 1980), American musician, stage name TT * Tying Tiffany (born 1978), Italian singer, stage name TT
===Other arts and entertainment=== * ''The Dominators'' (production code: TT), a 1968 ''Doctor Who'' serial * T.T., a fictional character in the film ''The Forever Purge'' * Thomas Thorpe (T.T.), the publisher of Shakespeare's sonnets
==Business and organizations== * TT Electronics, a British maker of automotive components * Tom Tailor, a German clothing company * TT Games, a British software producer * TT News Agency, a Swedish news agency * TT Technologies, a construction equipment manufacturer * ThunderTalk Gaming, a Chinese esports organization * Tigerair Australia (former IATA code: TT), a former low-cost airline * Toytown Germany, a website for English-speaking foreigners in Germany * Order and Justice (abbreviated TT in Lithuanian), a political party in Lithuania
==Language== * Tatar language (ISO 639-1 code) * TT, an emoticon indicating tears streaming from the eyes * Totus tuus, a Latin greeting meaning "all yours"
==Science and technology== ===Medicine=== * Tetanus toxoid, a vaccine to prevent tetanus * Thrombin time, a coagulation blood test
===Computing=== * .tt, the country code top-level domain for Trinidad and Tobago * Template Toolkit, a Perl template engine * Transaction translator, a particular unit in USB hubs * tt-reduction (truth-table reduction), a kind of transformation used in computability theory * {{tag|tt}} (short for teletype), an HTML presentation element that writes text in monospace font
===Other science and technology=== * TT earthing system (terre-terre), a system of electrical earthing * Tiny Telephone, a type of phone connector * Telegraphic transfer (T/T), a method of transferring money * Terrestrial Time, an astronomical time standard
==Sports== <!--* Table tennis (fails WP:DABACRO)--> * Time trial, in racing sports, a race against the clock to secure the fastest time * TT Pro League, a professional association football league for clubs in Trinidad and Tobago
===Motorcycle races=== * Isle of Man TT, an annual motor-cycle racing event held on the Isle of Man ** TT Zero, an Isle of Man TT race for solo motorcycles producing low-emissions * Dutch TT, a motorcycling event, held on the last Saturday of June * Welsh TT, historic motorcycle road races originally held annually on Pendine Sands, Wales, UK circa 1920 * Welsh TT, historic motorcycle road races originally held annually at Mynydd Epynt, Wales, UK circa 1950
==Transportation== * Audi TT, 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, a pseudoscientific energy therapy * TT pistol, a Soviet military automatic pistol designed by Fedor Tokarev * TT scale, a niche model railroading scale * Trinidad and Tobago (ISO 3166 code) * Trust Territory, a former geopolitical status * TT bar, a ten tola gold bar * Theban Tombs, catalog designation of the tombs of Theban Necropolis, Egypt
==See also== {{canned search|tt|T.T.}} * Atari TT030, a computer based on the Motorola 68030 CPU * TT-Line, a German shipping company * TT-Line Company, a ferry company operating the Spirit of Tasmania service, Australia * Pi (letter) (Π) * TTT (disambiguation) * T&T (disambiguation) * 2T (disambiguation) * T2 (disambiguation) * T-square (disambiguation) * Tourist Trophy (disambiguation) * {{intitle|T.T.}} * {{srt}}
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