TR or tr may stand for

Arts and entertainment

Gaming

* Tomb Raider, one of the most successful video game franchises * Terminal Reality, an American video game developer * A currency in online game '' TalesRunner'' * The Terran Republic in the game '' 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 The Tomahawk Railway is the trade name employed by Genesee & Wyoming to operate of railroad in northern Wisconsin.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 * Todd Rundgren, American musician and record producer

Places

* TR postcode area, UK postal code for the Truro area * Travelers Rest, South Carolina, US * Turkey (ISO 3166-1 alpha-2 country code TR)

Science, technology, and mathematics

Biology and medicine

* Thyroid hormone receptor, a nuclear receptor * Tricuspid regurgitation, within the heart * Repetition time,

magnetic resonance imaging Magnetic resonance imaging (MRI) is a medical imaging technique used in radiology to form pictures of the anatomy and the physiological processes of the body. MRI scanners use strong magnetic fields, magnetic field gradients, and radio wave ...

* Taxonomic rank

Computing

.tr .tr is the Internet country code top-level domain (ccTLD) for Turkey. It is administered by trABİS (under the Information and Communication Technologies Authority of Turkey) and managed by the Computer Center DNS Group of the ICT Authority. The ...

, the country code top level domain (ccTLD) for Turkey * tr (Unix), command to translate characters * Table row, an

HTML element An HTML element is a type of HTML (HyperText Markup Language) document component, one of several types of HTML nodes (there are also text nodes, comment nodes and others). The first used version of HTML was written by Tim Berners-Lee in 1993 ...

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

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) The training routines (TR) are training exercises or drills used in the Church of Scientology as well as affiliated programs Narconon, Criminon and WISE. The church describes them as a way of learning to communicate effectively and to control situ ...

* Tax return * Tax refund