TI

TI, ti, and variants may refer to:

Arts and entertainment

 * Ti/Si, the seventh syllable in the solfège technique
 * The International (Dota 2), an esports tournament
 * Twilight Imperium, a game

Businesses and organizations

 * TI-class supertankers, ships operated by Tankers International
 * Texas Instruments, an American electronics company
 * Telecom Italia, an Italian telecommunications company
 * TI Group, previously Tube Investments, an English engineering company
 * Therapeutics Initiative, a medication evaluation organization
 * Tiger Inn, a Princeton University eating club
 * Toastmasters International, a public speaking organization
 * Former Tol Air, IATA code
 * Tailwind Airlines, IATA code
 * Transparency International, anti-corruption organisation
 * Treasure Island Hotel and Casino, Las Vegas, US

People

 * Ti, a high-status official during the Fifth Dynasty of Egypt
 * Ti. for Tiberius, a Roman given name
 * T.I. (born 1980), American rapper, born Clifford Harris
 * TI, post-nominal initials used by awardees of Tamgha-e-Imtiaz, a Pakistani honour
 * "Targeted individual", person claiming to be subject to "gang stalking"
 * Ti, Bonnie Nettles, religious leader

Places

 * Ti, Oklahoma, US
 * Thursday Island, Torres Strait
 * Ticino, a canton (federated state) of Switzerland

Biology and medicine

 * Ti or Tī, a generic name in Polynesian languages for plants of the genus Cordyline, including:
 * Cordyline fruticosa, Tī, Tī pore (Māori), Kī (Hawaiian)
 * Cordyline australis (Tī kōuka or Cabbage tree, New Zealand)
 * Cordyline banksii (Tī ngahere or Forest cabbage tree, New Zealand)
 * Cordyline indivisa (Tī toī, tōī or Mountain cabbage tree, New Zealand)
 * Cordyline obtecta (Tī, Norfolk Island cabbage tree, Three Kings cabbage tree, Norfolk Island and New Zealand)
 * Cordyline pumilio (Tī rauriki, Tī koraha or Dwarf cabbage tree, New Zealand)
 * Therapeutic index

Computing

 * Ti (prefix symbol), of interim unit tebi; e.g. Tib for tebibit

Other uses in science, technology, and mathematics

 * Topological insulator
 * Titanium, symbol Ti, a chemical element
 * Truncated icosahedron

Other uses

 * Ti (concept), a term meaning "substance" (體) in Chinese
 * TI (cuneiform), a sign in cuneiform writing
 * Ti, Old Swedish spelling of Týr, deity of Norse mythology
 * Tigrinya language (ISO 639-1 code "ti")
 * ti (digraph), the characters $⟨ti⟩$
 * Tenant inducement, in commercial real estate