TR or tr may stand for
Arts and entertainment
Gaming Tomb Raider, a video game franchise Terminal Reality, an American video game developer Terran Republic (PlanetSide), a faction in the video game series PlanetSide
Music Korg TR, a variant of the Korg Triton music workstation synthesizer Trill, notation for musical ornament TR-808, TR-909 etc., 1980s Roland drum machines
Businesses and organizations Scoot, IATA code since 2017 Tiger Airways, IATA code between 2003 and 2017 Tomahawk Railway, reporting mark Transbrasil, IATA airline code until 2001 Team Rubicon, commonly used abbreviation Talyllyn Railway, a Welsh railway Thomson Reuters, a Canadian multinational media conglomerate Texas Roadhouse, restaurant chain in the United States Tokyu Railways. See Tokyu Corporation
Language Tr, a digraph Turkish language (ISO 639 alpha-1 code "tr")
People Theodore Roosevelt, the 26th president of the United States Presidency of Theodore Roosevelt, 1901-1909 The , a Nimitz-class aircraft carrier T. Rajendar, Indian filmmaker and politician T. Ramachandran (writer) (1944–2000), Indian writer who wrote under these initials
Places TR postcode area, UK postal code for the Truro area Travelers Rest, South Carolina ISO 3166-1 alpha-2 country code of Turkey Vehicle registration code of Tripura, a state of India
Transportation Taiwan Railway, a state-owned conventional railway in Taiwan
Science, technology, and mathematics Biology and medicine Thyroid hormone receptor, a nuclear receptor Tricuspid regurgitation, within the heart Repetition time, magnetic resonance imaging Taxonomic rank
Computing .tr, the country code top level domain (ccTLD) for Turkey tr (Unix), command to transliterate characters Table row, an HTML element
Vehicles Thai Rung Union Car Toronto Rocket, a rolling stock of the Toronto subway Triumph Motor Company. a sports car designation, e.g. TR2 Ferrari TR (set index), several cars Berliet TR, a range of heavy-duty trucks
Other uses in science, technology, finance, and mathematics TR-1, a version of the Lockheed U-2 aircraft Technical Report, a type of ISO document Trace (linear algebra) Ton of refrigeration Total return
Other uses Textus Receptus: Printed Greek New Testament translation sources Training routines (Scientology) Tax return Tax refund
See also