TR

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 USS Theodore Roosevelt (CVN-71), 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 <tr>...</tr>

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

• All pages with titles beginning with TR
• All pages with titles containing TR
• All pages with titles containing T.R.