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
  • 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

Science, technology, and mathematics

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
  • Tenant inducement, in commercial real estate
  • Tobu's Isesaki Line, Sano Line, Koizumi Line, and Kiryū Line (railway line prefix TI)

See also

  • Di (disambiguation) for several Chinese concepts; "Ti" is the Wade–Giles equivalent of "Di"
  • TL (disambiguation)
  • T1 (disambiguation)