The letter T is the twentieth letter in the Latin alphabet. Its name in English is tee .

History

Tâw was the last letter of the Western Semitic and Hebrew alphabets, and probably represented a cross. The sound value of Semitic Taw, Greek alphabet Tαυ (Tau), Old Italic and Latin T has remained fairly constant, representing IPA in each of these; and it has also kept its original basic shape in all of these alphabets.

Codes for computing

In Unicode the capital T is codepoint U+0054 and the lowercase t is U+0074.

The ASCII code for capital T is 84 and for lowercase t is 116; or in binary 01010100 and 01110100, correspondingly.

The EBCDIC code for capital T is 227 and for lowercase t is 163.

The numeric character references in HTML and XML are "T" and "t" for upper and lower case respectively.

Meanings for T

• T- is used as a prefix for an object that is shaped like the capital letter T, such as T-shirt, T-bone, and T-joint.
• In anatomy, T means thoracic, as in T-spine, or written with a number (from T1 to T12) refers to a numbered thoracic vertebra or thoracic spinal nerve.
  • Tarsal
  • Testis
  • Trachea
  • Triceps
  • Tympanum
  • Transverse tubule (muscle neurobiology)
• In archaeology, backhoe trench
• In astronomy,
  • T stands for an October 1 through 15 discovery, in the provisional designation of a comet (e.g. C/1847 T1, Miss Mitchell's Comet) or asteroid (e.g. ).
  • T stands for the "time of perihelion passage," an orbital parameter placing the object on its orbit.

• In automobile engineering,
  • Turbocharged

• In aviation,
  • Takeoff minimum
  • Terminal area chart (followed by identification)
  • Terrain clearance altitude
  • Threshold lighting
  • Trainer (as in T-37)

• In bibliography,
  • Octodecimo (book from 12-1/2 to 15 centimeters in height)
  • Title
  • Twentyfourmo (book up to 15 centimeters in height)

• In biochemistry, T is the symbol for
  • threonine
  • thymine
  • D-Ribosylthymine
  • Terminus
  • Tetrose
  • Thromboplastin
  • Thromboxane
  • Thymine (also Thy)
  • Tocopherol
  • Toxin
  • Transferrin (Also, TF, TRF)
  • Treponema
  • Triose
    
  as well as a synonym for the brachyury gene.

• In biology,
  • Taxus (genus of coniferous trees including the yews)
  • Tonus
  • Testacella (a genus of slug)
  • Tilia, a genus of trees including the basswoods
  • Trematode, a genus of flatworms
  • Trichinella, a genus of roundworms
  • Trichuris, a genus of whipworms
  • Tsuga, a genus of coniferous trees including the hemlocks
  • Twin
  • Twisting number
  • Typhlosole
  • In botany,
    • Tetraspore
    • Thallus
    • transpiration
    • Trichome
    • Trillium
    • Turnover index
    • Typha
  • In microbiology,
    • Toxigenicity
    • Transduction
  • In genetics,
    • Tenor (genotype of Phlox paniculata)
    • terminator
  • In zoology, tentacle

• In calendars,
  • T is often an abbreviation for Tuesday or Thursday.
  • Also, Tridi (the third day of the week in the calendar used during the French Revolution from 1792-1806)

• In cardiology,
  • thrill
  • triggered

• In chemistry, T is the symbol for tritium, an isotope of hydrogen.
  • Also, transport number
  • Tautomer
  • Tertiary
  • Transition metal

• In communication, T sometimes stands for telephone number.
  • Ground, transportation
  • In telecommunication,
    • Telemeter (or "telemetry")
    • Telephone trunk call (British)
    • Television (FCC)
    • The (telegraphy)
    • Tip (switchboard plug)
    • Toggle
    • Transmission
• In cooking,
  • t. is an abbreviation for teaspoon,
  • T. is an abbreviation for tablespoon.

• In computing, T refers to the T programming language.
  • Tag (telecommunications)
  • Telnet
  • Terabyte
  • Third-word designator
  • Trace command
  • Truth

• In crystallography,
  • tetragonal
  • tetrahedral site
  • trigonal
  • twin

• In economics, T is usually used to represent taxation.
  • Also, marginal propensity to tax
  • Tourist (rate of the English pound)

• In electronics, transistor

• In emergency management,
  • Time in hours after detonation
  • vesicant agent

• In finance, T is the U.S. ticker symbol for AT&T.
  • Also, treasury (as in T-Bill, T-Bond, T-Note)
  • Tala, a monetary unit in Western Samoa
  • Thaler, or Talari, monetary unit in Ethiopia
  • Toronto Stock Exchange
  • In anique numismatics, T indicated that a coin had been made in Nantes, France.

• In freemasonry, tiler

• In French,
  • Mardi, "Tuesday"
  • tare, "tare"
  • titre, "security" (finance)
  • tonne, "ton"

• In geology,
  • Taylor number
  • Tilic subgroup (Ilmenite, titanite, perofskite, rutile)
  • Toarcian
  • Triassic period

• In geotextiles, breaking toughness
• In geography,
  • Tashkent, Uzbekistan
  • Tasmania (state)
  • Tegucigalpa, Honduras
  • Teheran, Iran
  • Tempe, Arizona
  • Thailand (international vehicle registration)
  • Thames River, England
  • Tiber River, Italy
  • Tientsin, China
  • Tigris, River
  • Tijuana, Mexico
  • Tirana, Albania (used in Albania)
  • Tithing (geographical division ^*)
  • Tonga, South Pacific Islands
  • Topeka, Kansas
  • Toronto, Canada
  • Toulouse, France
  • Tralee, Ireland (fishing port registration)
  • Trenton, New Jersey
  • Tripoli, Libya
  • Tsingtao, China
  • Tulsa, Oklahoma
  • Tuscon, Arizona

• In German,
  • Tonne (ton)
  • Teich (pond military)

• In hematology, thymus-derived

• In horticulture, tender

• In immunology, Thomson-Friedenreich Antigen

• In the International Phonetic Alphabet, the symbol stands for the voiceless alveolar plosive.

• In Italian,
  • Tabacchi, "tobacco" (used in the signs of shops)
  • Temperatura, "temperature"
  • Tempo, "time" (physics)
  • Tera-
  • Tessla
  • Thailandia
  • Tomo, "volume" (bibliography)
  • Tonnellata, "ton"
  • Torre, "tower"
  • Trizio (chemistry)
  • Tubercolosi
  • Various proper names, like Tito, Tristano, Teresa, etc.

• In Latin,
  • Tabula, "plate"
  • Tempore, "in the time of"
  • Testamentum, "will"
  • Titus (name)
  • Tomus, "volume"
  • Trinitas, "the Trinity" (Late Latin)

• In law,
  • tenant
  • Testator
  • Thomas Mieres (flourished, 1429-39 cited in pre-1607 legal work)
  • treaty

• In linguistics,
  • Transformation rule
  • Trace
  • Tu (denotes familiar word forms French, "you")
  • In composition,
    • Typed
    • Wrong tense of verb

• In propositional logic T is the symbol for "true".

• In machining, symbol for cutting time
  • Tolerance

• In mass transit, "The T" is the nickname for:
  • Boston's Massachusetts Bay Transportation Authority (MBTA)
  • Fort Worth's Fort Worth Transportation Authority
  • Pittsburgh's Port Authority of Allegheny County (PAT)

• In mathematics,
  • T is sometimes used for the top element of a lattice. This element is also denoted by the symbol $\backslash top$.
  • Blackboard bold $\backslash mathbb\{T\}$ represents a torus, or the circle group.
  • Term
  • Tera- (prefix indicating 10¹²)
  • The medieval Roman numeral for 160
  • In probability and statistics, t represents Student's t-distribution.

• In mechanics, axisymmetric loading
  • Symbol for circular tooth thickness of gears

• In medicine,
• Tamoxifen (antineoplastic drug)
  • Ter (three times ^*)
  • Test of significance
  • Tetracycline (antibiotic compound)
  • Theophylline
  • Thioguanine, (Also, TG) an antineoplastic drug
  • Thiopental (an anesthetic]
  • Thymidine
  • Tissue
  • Trichophyton
  • Trimethoprim (also, TMP compound)
  • Turnkey
  • Tuberculosis
  • Trypanosoma
  • Taenia
  • Transfusion
  • Thrombosis
  • Thrombus
  • Thyroid
  • Tidal gas (in respiration)

• In metallurgy, teem

• In meteorology, thunderstorm

• In military science,
  • Tracer (ammunition)
  • Tracker (British military)
  • Training-mission vehicle (Department of Defense symbol)

• In music,
  • Talon (heel of the bow)
  • Tasto (The key of a keyboard instrument; or the fingerboard of a bowed string instrument) Italian, "tie" or "fret"
  • Tendre (tender)
  • Tenor
  • Treble
  • Trillo (trill)
  • Tutti (sing or play together)

• In naming, various proper names, as Thomas, Timothy, Titus, Theresa, etc.

• At NASA,
  • Thermostabilized
  • Throttle command
  • Previously "Test" ^*. Today it is synonymous with time for launch. Current time in relation to the launch is commonly given as "T minus (remaining time)".
• In navies,
  • Military sealift command ship (when precedes vessel classification)
  • Transferred
  • Telegrapher
  • Torpedo (obsolete)
  • Tug
  • In the Royal Navy,
    • Torpedoman
    • Turner (rating)

• In oncology, tumor

• In opthalmology, intraocular tension

• As the first letter of a postal code,
  • In Canada, T stands for Alberta.

• In phonetic alphabets,
  • Tango (international)
  • Tear (World War II)
  • Tare (World War II)
  • Toc (Pre-World War II)
  • Tommy (World War I Navy)

• In photography,
  • tablet-shaped (as in "T-grains")
  • total light transmission (in T-number)

• In physics,
  • Surface tension
  • Isotopic spin (Nuclear physics)
  • Bloch wave transmission probability (solid-state physics)
  • Truth (particle physics)
  • In acoustics, reverberation time

• In psychology, tier

• Publication abbreviations include
  • Tappan's Ohio Common Pleas Reports
  • Tobacco Tax Ruling, Internal Revenue Bureau (United States)
  • Traffic Cases
  • Transvaal Provincial Division Reports (South Africa)

• In Roman naming convention, T is the abbreviation for the praenomen Titus.

• In Russian,
  • Tóннa (Tonna) "ton(s)"
  • Toвápищ (Tovarishch) "comrade"
  • Tom, "volume" (bibliography)

• In the sciences,
  • t is commonly used as a variable for time,
    • In atomic physics, time-reversal
    • Time inversion (particle physics)
    • Burning time (for rockets)
  • t is a symbol for the top quark
  • Testosterone
  • Meridian angle
  • The discipline category abbreviation for metallurgical and materials engineering (from "technology")
  • Analyzer response function (Auger spectroscopy)
  • Tun (Unit of liquid capacity)
  • Torr (Unit)
  • Troy (A system of weights for precious metals)
  • T is commonly used as a variable for temperature, especially
    • Absolute temperature
    • Air temperature correction
    • Burning time (for rockets)
  • In the SI system,
    • T is the symbol for the tesla, the SI derived unit for magnetic flux density.
    • T, tera, is the SI prefix meaning 10¹².
    • t is an abbreviation for tonne, which equals 1000 kilograms, for measuring mass.
    • Tagesprobe

• In shipping and sailing
  • Tapered hatchway
  • Thruster
  • Thrust of propeller (naval engineering)
  • Thunder (in a ship's log-book)
  • Twin screw
  • Tonnage
  • Tipper
  • Tropical loading (on load line)
  • Tufa (quality of the bottom charts)

• In slang,
  • Tablet (anything with a dot of LSD on it)
  • Tea (marijuana mid-1900s on)
  • Tuinal, a barbiturate (U.S.)
  • THC, (U.S., late 1900s)

• In Spanish,
  • Tabla
  • Tailandia, "Thailand"
  • Talón, "talon" (music)
  • También, "also"
  • Tara, "tare"
  • Tarde, "late"
  • Tarifa
  • Tarjeta, "card"
  • Tasa, "rate" (mailing)
  • Tasto, "tasto" (music)
  • Técnica
  • Técnico
  • Técnicos
  • Telecomunicaciones
  • Telefónica, "telephone," adjective
  • Teléfono, "telephone"
  • Telegrafía, "telegraphy"
  • Telegráfico
  • Telégrafos
  • Telegrama, "telegram"
  • Temperatura, "temperature" (medicine)
  • Tempo (music)
  • Temporal
  • Tenis, "tennis"
  • Tenor (music)
  • Tensión intraocular, "intraocular tension"
  • Tercera, "third"
  • Terminación
  • Territorial
  • Territoriales
  • Tesorería, "treasury"
  • Tesoro
  • Testamento, "will"
  • Texto, "text"
  • Tiempo, "time"
  • Tierra, "land"
  • Timbre, "seal"
  • Tipógrafo,
  • Titular
  • Título, "title"
  • Tomín (a silver coin used in the past in South America)
  • Tomo, "volume"
  • Tomografía, "tomography"
  • Tonelada(s), "ton(s)" (commerce)
  • Total, "total"
  • Trabajadores, "workers"
  • Trabajo, "work"
  • Traductor, "translator"
  • Tráfico
  • Tránsito
  • Transitoria
  • Trans
  • Transmisiones
  • Transporte
  • Transportes
  • Tratado
  • Tratamiento
  • Tribunal
  • Tributaria
  • Tributario
  • Trimmer
  • Tritio (chemistry)
  • Tuberculosis
  • Turismo
  • Tutti, "tutti" (music)

• In spectrophotometry, transmittance

• In sports,
  • Tackle (American football)
  • Tie
  • Time consumed in playing game (baseball)
  • Timekeeper

• In technical drawings,
  • Tee (piping joint, etc.)
  • Teeth
  • Tread (stair details)

• In video games, T is the ESRB rating symbol for Teen.

• T is a perfume made by Tommy Hilfiger
• T- is used as prefix for Deutsche Telekom shares ("T-Shares"), products/services (such as T-DSL) and divisions, such as T-Com, T-Mobile, T-Online and T-Systems.
• T is a shortened nickname of actor Laurence Tureaud, also known as Mr. T.
• T is the library symbol used for the Tennessee State Library and Archives, Nashville, TN used by the Library of Congress
• Aerotec (Sociedade Aerotec Ltda. href="http://articles.gourt.com/en/ICAO">ICAO aircraft manufacturer identifier)

Other abbreviations

• Anchor tested
• Table
• Tack
• Tactical organization
• Tactual
• Taken
• Taken from
• Taler
• Talc
• Tamper
• Tanhuma
• Tan
• Tanker
• Tanna
• Tap
• Tanzania
• Tape
• Taper
• Target
• Tarnish
• Tata Engineering & Locomotive Co. Ltd.
• T bar
• Teach
• Teacher
• Team
• Technical (or Technician)
• Technological
• Telegram
• Telephone
• Teletype
• Temperature
• Tempo
• Temporal
• Temporary
• Tenacity
• Tense
• Tensor
• Tent
• Tentative target
• Teracycle
• Term
• Terminal
• Terminal banding
• Termination
• Terrace
• Terrain
• Territory
• Tertiary
• Testat
• Test
• Testament
• Test equipment
• Test reactor
• Test set
• Tetanus
• Tetrahedral
• Tetrode
• Texan
• Text
• Textile
• Textural
• Thai
• Than
• That
• Theft
• Theorem
• Theoretical
• Therapeutic
• Therapy
• Thermodynamic temperature
• Thermometer
• Thermostat
• Thickness
• Thief
• Thread
• Throat
• Throttle
• Throughput
• Throw
• Thrust
• Thymus
• Tick
• Tied
• Tight
• Tilt
• Timber
• Time
• Time factor
• Time period
• Timer
• Time trial
• Tincture
• Tinea
• Tint
• Tire
• T-iron
• Tissue
• Titania
• Toe
• Togo
• Toll
• Tolerant
• Toilet
• Toluene
• Tome
• Tomography
• Ton
• Tone
• Toner
• Tongs
• Tongue
• Tonometer reading
• Tonometry
• Tool
• Tool life
• Tooth
• Tooth number
• Top
• Topical
• Top secret
• Torch
• Tornado
• Toroid
• Torque
• Torsion
• Torsional modulus
• Torsional moment
• Tortoise
• Torus
• Tosefta
• Total
• Touch
• Tough
• Town
• Tower
• Township
• Toxic
• Toxicity
• Toxicological
• T-Profilstahl, T-Eisen
• Trace
• Tracheotomy set
• Track
• Tract
• Traction
• Tractor
• Traded
• Tradesman
• Traditional
• Traffic
• Traffic headquarters
• Trail
• Trailer
• Training
• Trajectory
• Transaction
• Transcription
• Transducer
• Transformer
• Transition
• Transit
• Transition point
• Translated
• Transmission coefficient
• Transmission stop
• Transmissivity
• Transmit (or transmitting)
• Transverse direction
• Trinitrotoluene
• Transitive
• Translation
• Translocation
• Translucency
• Transmissibility
• Transmitter
• Transparency
• Transponder
• Transport
• Transpose
• Transversal
• Transverse
• Trap
• Trapezoid
• Trauma
• Trawling
• Traverse
• Tray
• Treasurer
• Treated
• Treatment
• T reference point
• Trend
• Trial
• Triangle
• Triaxial
• Triode
• Triple
• Triplet
• Trotter
• Truce
• True (direction)
• Trunk
• Truss
• Tube
• Tubular
• Tubular propellant
• Tuesday
• Tumble
• Tuna
• Tune
• Turbine
• Turkish
• Turn (or turning)
• Turret
• Turtle
• Tutor
• Twine
• Twist
• Twisting moment
• Type
• Typhoid

See also

Latin letters

T | T | T | T | T | T | T | T | T | T | T | T | T | T | T | T | T | T | T | T | T | T | T (letter) | T | T | T | T | T | T | T (латиница) | T | T | T | T | T | T | T | T | T