TS or Ts may refer to:

Businesses and organizations

* Air Transat (IATA code TS), a Canadian airline * Tenaris (NYSE symbol), a global manufacturer of steel pipe products * Theosophical Society, religious philosophy * Tidewater Southern Railway (reporting mark TS), a former US railroad * Trabzonspor, a Turkish Football Club *

Transcendental Students Transcendental Students (TS) was a student activist and anarchist group created in 1969 at NYU in New York City. Its motto and philosophy was "insurrection through happiness". Transcendental Students differed from the more nationally well-known ...

, a former radical student group at NYU * TS Ferries, an Estonian ferry line

Linguistics

Ts (digraph) This is a list of digraphs used in various Latin alphabets. Capitalisation involves only the first letter (''ch'' becomes ''Ch'') unless otherwise stated (''ij'' becomes ''IJ''). Letters with diacritics are arranged in alphabetic order accordin ...

, a digraph in the Latin alphabet *

Voiceless alveolar sibilant affricate A voiceless alveolar affricate is a type of affricate consonant pronounced with the tip or blade of the tongue against the alveolar ridge (gum line) just behind the teeth. This refers to a class of sounds, not a single sound. There are several typ ...

(, , or ), a type of consonantal sound **

Tse (Cyrillic) Tse (Ц ц; italics: ), also known as Ce, is a letter of the Cyrillic script. It commonly represents the voiceless alveolar affricate , similar but not identical to the pronunciation of zz in "pizza" or ts in cats. In the standard Iron di ...

(Ц ц), the Cyrillic letter representing the voiceless alveolar affricate * Tsonga language (ISO 639 code: ts), of southern Africa

Science and technology

* Tensile strength, in materials science

Biology and medicine

* Transverse section, a term used in microscopy when prepared slide has a sample transversely dissected. * Thymidylate synthase, the enzyme used to generate thymidine monophosphate * Tourette syndrome, a neurological condition involving involuntary tics * Turner syndrome, a condition in which a female is partly or completely missing an X chromosome

Chemistry

* Tennessine, symbol Ts, a chemical element * Tosyl, a group in organic chemistry * Transition state, of a chemical reaction

Electronics and computing

* Adobe Technical Communication Suite, an Adobe software family * MPEG transport stream (file extension .ts), a digital media container format * Telesync, a bootleg recording of a film recorded in a movie theater * Terminal Services, a component of Microsoft Windows operating systems * Tip-Sleeve, a standard monaural phone connector (audio), phone connector * TypeScript (file extension .ts), a Microsoft programming language

Mathematics

* Tabu search, a search method * Tate–Shafarevich group, in arithmetic geometry

Transportation

* Twin Spark, an Alfa Romeo car engine technology * Turbine Steamship (ship prefix#Generic (merchant navy) prefixes, ship prefix) * Turn and slip indicator, an avionics instrument * Training Ship (ship prefix#Generic (merchant navy) prefixes, ship prefix) * Telangana State (vehicle registration code TS), India * Tunisia (aircraft registration prefix TS)

Other uses

* Teaspoon (ts.), a measure in cooking * ISO technical specification#Standardization process, ISO Technical Specification, e.g. ISO/TS 16949:2009 * TinySex, a slang term in sexual roleplay * Top Secret, a security classification * ''Toy Story (franchise), Toy Story'', an American film franchise ** ''Toy Story'', the first film of the franchise * Transsexual, a person whose gender identity is inconsistent with their assigned sex * TeamSpeak, a proprietary voice-over-Internet Protocol application for audio communication *TS postcode area, UK *Transition School, a one-year program at the University of Washington; see Transition School and Early Entrance Program