TN

Tn or TN may refer to:

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, 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")
North Tipperary, a former county of Ireland (car plate code "TN")

Science and technology

.tn, 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, 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 field effect, the technology that made LCD displays practical
Thoron, symbol Tn, a sometimes used name for the nuclide radon-220

Other uses

TN status ("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 ("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, indicating that the ship was propelled by a turbine engine.

This disambiguation page lists articles associated with the title TN.
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