Look up T in Wiktionary, the free dictionary.
T is the twentieth letter of the Latin alphabet. (For the same letterform in the Cyrillic and Greek alphabets, see Te and Tau respectively).
T may also refer to:
Codes and units
- T, Tera- as in one trillion
- T, the symbol for "True" in logic
- T, the usual symbol for period, the reciprocal of frequency
- T, the symbol for Tesla, the SI unit of magnetic field
- t, the SI symbol for tonne or metric ton
- t, the usual symbol for time
- t, the angular coordinate of the polar coordinate system (usually ϕ or θ) is sometimes denoted by t
- , the symbol for torque
- ⊤, the top element of a partially ordered set
- T, short for tablespoon
- t, short for teaspoon
Names
- Titus (praenomen), common name throughout Roman history, regularly abbreviated T
Entertainment
Literature
- T, a novel by Victor Pelevin
- T (magazine), a fashion magazine, full name T: The New York Times Style Magazine
- "T" Is for Trespass, the twentieth novel in Sue Grafton's "Alphabet mystery" series, published in 2007
- T-unit, a grammatical term
Television
Music
- T (Funker Vogt album), a 2000 aggrotech album by Funker Vogt
- T (TVXQ album), a 2008 TVXQ album
- T (Teflon Brothers album), a 2009 album by Finnish hip hop group Teflon Brothers
- "t," an Iamamiwhoami song
- T, abbreviation for tutti
- T, abbreviation for tenor
- t, note abbreviation in tonic sol-fa for seventh scale degree
- T-Babe, a virtual pop singer
Video games
- T (teen), a game rating from the Entertainment Software Rating Board which the board believes is suitable for those aged 13 years and older
Finance and business
- AT&T, an American phone company which trades on the New York Stock Exchange as T
- T-Mobile International AG, mobile network operator based in Germany
- T-Systems, German IT services company
- T-Online, German Internet Service Provider
- Treasury (as in T-Bill, T-Bond, T-Note)
- T, a mintmark for Nantes, France
Science
Biology and medicine
- Troponin T, one of the three troponins
- Haplogroup T (mtDNA), a human mitochondrial DNA (mtDNA) haplogroup
- T cells, part of the components of the immune system along with B cells
- T, the one-letter code used for threonine, one of the 20 amino acids used in transcription of a polypeptide chain
- Thymine, one of the four nucleic acids of DNA
- T, gene and protein symbol for the transcription factor brachyury
- Thoracic vertebrae T-1 through T-12
- T wave, the repolarization wave of cardiac ventricles in electrocardiography
- T, a common abbreviation for the male sex hormone testosterone
Palaeontology
- T-rex, abbreviation for Tyrannosaurus rex
Meteorology
- Thunderstorm
- T-number in the Dvorak technique, a way to rate storm intensity
Physics and chemistry
- T, symbol for tritium, a radioactive isotope of hydrogen
- T-symmetry in particle physics
- Class T, a cool brown dwarf class of stars
- ΔT (disambiguation): a variety of meanings related to changes in a quantity denoted by T, such as time or temperature
Mathematics
- T score, a statistical term
- Student's t-distribution, statistical term
- System T, in modal logic
- , the n-dimensional torus ()
- , the Circle group
- AT, the transpose of a matrix A
Technology and computing
- T (programming language), created in the early 1980s
- T, Toshiba's mobile phones in Japan
- T, an abbreviation for telephone number
- t, an abbreviation for microblogging service Twitter
- t-distributed stochastic neighbor embedding, a machine learning algorithm for data visualization
- T-pose, a default pose for a 3D model's skeleton before it is animated
- Landing T, a ground signal that indicates the wind direction in aerodromes
- Transfer (computing), in computer technology, a data transfer, often used to measure speed (e.g. megatransfers per second)
Transportation
Equipment
- Ford Model T, produced 1908–1927
- NZR T class steam locomotives in New Zealand
- Tank locomotive
- OS T1000, an Oslo Metro train
- T gauge, a scale for model railroad trains
Public transport
- Massachusetts Bay Transportation Authority (nicknamed the "T")
- T Third Street in San Francisco, California
- Oslo Metro or Oslo T-bane
- Pittsburgh Light Rail, commonly called the T
- Stockholm Metro or T-bana
- T (New York City Subway service)
- Trinity Metro, formerly known as "The T"
- Tokyo Metro Tozai Line, a subway service operated by the Tokyo Metro, labeled
- Tanimachi Line, a subway service operated by the Osaka Metro, labeled
, the official West Japan Railway Company service symbol for the Tsuyama Line.
Phonetics
- [t], the International Phonetic Alphabet character for the voiceless alveolar plosive
- [ʈ], the IPA character representing the voiceless retroflex stop
Other uses
- "The T", a nickname for the rural part of Pennsylvania due to its shape when eliminating the Pittsburgh and Philadelphia Metropolitan Areas, also known by its slang term Pennsyltucky
- Т, a letter of the Cyrillic alphabet
- T-bone steak, the cut of meat
- T-shirt, a type of clothing
- T in the Park, an annual music festival, held in Kinross, Scotland and named after its main sponsor, the brewing company Tennents
- Crossing the T, a classic naval warfare tactic
- Stealing the 'T', an historic college prank as the "T" is stolen from the Tech Tower at the Georgia Institute of Technology
- T (Tango), the military time zone code for UTC−07:00
See also
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