Businesses and organizations

* Air Tahiti Nui (IATA airline designation "TN" since 1998), a French Polynesian airline * Texas and Northern Railway, an American railway (reporting mark "TN") * Todo Noticias, an Argentine cable news network * Trans Australia Airlines (IATA airline designation "TN" until 1994), a defunct Australian airline *

Transports en commun de Neuchâtel et environs Transports may refer to: * Military transport aircraft * a Ministry of Transport * Dow Jones Transportation Average * ''The Transports ''The Transports'' is a folk ballad opera written by Peter Bellamy released by Free Reed Records in 1977. It ...

, a public transport operator in Neuchâtel, Switzerland

Places

* Tamil Nadu, a state in southern India (ISO abbreviation "IN-TN") * Tennessee, US (postal abbreviation "TN") * Tonbridge, a region in England (postcode "TN") * Tunisia (ISO 3166-1 country code "TN") * Trentino, a province in Italy (ISO abbreviation "IT-TN") ;Other * North Tipperary, Ireland (former code "TN")

Science and technology

.tn .tn is the Internet country code top-level domain ( ccTLD) for Tunisia ) , image_map = Tunisia location (orthographic projection).svg , map_caption = Location of Tunisia in northern Africa Africa is the wo ...

, the country code top level domain (ccTLD) for Tunisia * TN network, a type of earthing system for protection in electricity network * Neel Temperature, the temperature at which an antiferromagnetic material becomes paramagnetic (represented as T_N) * ''

Tetraodon ''Tetraodon'' is a genus in the pufferfish family (Tetraodontidae) found in freshwater in Africa. It is the type genus of the family and historically included numerous other species; several Asian species were only moved to the genera ''Dichotomy ...

'', a genus of pufferfish * Trigeminal neuralgia, a neuropathic disorder * Transposon (when immediately followed by a number), a DNA sequence that can change positions *

Twisted nematic The twisted nematic effect (''TN-effect'') was a main technology breakthrough that made LCDs practical. Unlike earlier displays, TN-cells did not require a current to flow for operation and used low operating voltages suitable for use with batter ...

field effect, the technology that made LCD displays practical * Thoron, symbol Tn, a sometimes used name for the nuclide

radon-220 There are 37 known isotopes of radon (86Rn), from 195Rn to 231Rn; all are radioactive. The most stable isotope is 222Rn with a half-life of 3.823 days, which decays into . Five isotopes of radon, 217, 218, 219, 220, 222Rn occur in trace quantiti ...

Other uses

TN status TN status (or TN classification; "TN" from Trade NAFTA) is a special non-immigrant classification of foreign nationals in the United States, which offers expedited work authorization to a citizen of Canada or a national of Mexico. It was create ...

("Treaty national", or "Trade NAFTA"), an immigration status of a Canadian or Mexican citizen working in the USA under the NAFTA agreement * Telephone number, in the telecommunications industry * Tom Next (or Tomorrow Next), a financial trade which starts tomorrow and settles in the next trading day *

Trillion ''Trillion'' is a number with two distinct definitions: * 1,000,000,000,000, i.e. one million million, or (ten to the twelfth power), as defined on the short scale. This is now the meaning in both American and British English. * 1,000,000,000,0 ...

("TN" or "tn"), a number equal to 10¹² (short scale) or 10¹⁸ (long scale) * Tswana language (ISO 639-1 language code) * Translators Note ("TN" or "t/n") * ''Turbonave'', an Italian

ship prefix A ship prefix is a combination of letters, usually abbreviations, used in front of the name of a civilian or naval ship that has historically served numerous purposes, such as identifying the vessel's mode of propulsion, purpose, or ownership/n ...

, indicating that the ship was propelled by a turbine engine. {{disambiguation