TR

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TR or tr may stand for many things.

Contents 1 Official codes 2 Computing and science 3 Medicine 4 History 5 Music 6 Miscellaneous

[edit] Official codes

• Tiger Airways IATA code
• Tomahawk Railway (AAR reporting marks TR)
• Transbrasil IATA code
• Turkey (ISO 3166-1 alpha-2 country code)
• Turkish language (ISO 639 alpha-2)

[edit] Computing and science

• the table row HTML element
• tr, a Unix program
• Texas Red fluorescent dye
• Trace, the sum of the main diagonal elements of a square matrix in linear algebra
• Transistor

[edit] Medicine

• Trace

[edit] History

• Textus Receptus
• Theodore (Teddy) Roosevelt, 26th President of the United States
  • The USS Theodore Roosevelt (CVN-71), a Nimitz-class aircraft carrier

[edit] Music

• The Rasmus
• Trill
• TR-909, a drum machine made by Roland in the 1980s

[edit] Miscellaneous

• Scientology Training Routines
• The digraph tr
• Triumph Motor Company
• Tomb Raider computer video game series
• Terran Republic in the MMOFPS computer video game PlanetSide
• Team Rocket
• Toll Rail division of Toll NZ
• Tranz Rail
• Trent Reznor uses this alias at [1]
• In musical notation, tr indicates a trill
• In the engineering school ENSEEIHT, TR stands for Telecommunication & Networks (Reseaux in French)
• Toronto Raptors