TI, ti, and variants may refer to:

Arts and entertainment

* Ti/Si, the seventh syllable in the

solfège In music, solfège (, ) or solfeggio (; ), also called sol-fa, solfa, solfeo, among many names, is a music education method used to teach aural skills, pitch and sight-reading of Western music. Solfège is a form of solmization, though the tw ...

technique * The International (''Dota 2''), an annual esports tournament for the video game, ''Dota 2'' * ''

Twilight Imperium ''Twilight Imperium'' is a strategy board game produced by Fantasy Flight Games in the genre of science fiction and space opera. It was designed by Christian T. Petersen and was first released in 1997. The game is in its fourth edition (2017), ...

'', a game

Businesses and organizations

* TI-class supertankers, ultra-large tanker ships operated by Tankers International *

Texas Instruments Texas Instruments Incorporated (TI) is an American technology company headquartered in Dallas, Texas, that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globa ...

, an American electronics company *

TI Group TI Group plc (formerly "Tube Investments") was a holding company for specialised engineering companies. It was based in Abingdon, Oxfordshire. It was registered as ''Tube Investments'' in 1919, combining the seamless steel tube businesses of T ...

, previously Tube Investments, an English engineering company * Therapeutics Initiative, an evidence based medication evaluation organization *

Tiger Inn Tiger Inn (or "T.I." as it is colloquially known) is one of the eleven active eating clubs at Princeton University in Princeton, New Jersey. Tiger Inn was founded in 1890 and is one of the "Big Four" eating clubs at Princeton (the others are T ...

, a Princeton University eating club *

Toastmasters International Toastmasters International (TI) is a US-headquartered nonprofit educational organization that operates clubs worldwide for the purpose of promoting communication, public speaking, and leadership. History The organization grew out of a single c ...

, an international public speaking organization * Tol Air (IATA airline designator TI) * Tailwind Airlines, IATA code *

Transparency International Transparency International e.V. (TI) is a German registered association founded in 1993 by former employees of the World Bank. Based in Berlin, its nonprofit and non-governmental purpose is to take action to combat global corruption with civil ...

, an international organisation devoted to fighting corruption *

Treasure Island Hotel and Casino Treasure Island Hotel and Casino (also known as Treasure Island Las Vegas and "TI") is a pirate-themed hotel and casino located on the Las Vegas Strip in Paradise, Nevada, USA. It includes 2,885 rooms and a casino. The resort is owned and operat ...

, an American hotel and casino resort on the Las Vegas Strip

People

* Ti, a high-status official during the

Fifth Dynasty of Egypt The Fifth Dynasty of ancient Egypt (notated Dynasty V) is often combined with Dynasties III, IV and VI under the group title the Old Kingdom. The Fifth Dynasty pharaohs reigned for approximately 150 years, from the early 25th century BC until ...

* Ti. for

Tiberius Tiberius Julius Caesar Augustus (; 16 November 42 BC – 16 March AD 37) was the second Roman emperor. He reigned from AD 14 until 37, succeeding his stepfather, the first Roman emperor Augustus. Tiberius was born in Rome in 42 BC. His father ...

, a Roman given name shared by several people * T.I. (born 1980), American rapper and actor; real name Clifford Harris * Stephen Michael, Australian rules footballer * TI or targeted individual, self-name for the category of delusional people who claim to be targets of

electronic harassment Electronic harassment, electromagnetic torture, or psychotronic torture is a conspiracy theory that malicious actors (often government agents or crime rings) make use of electromagnetic radiation (such as the microwave auditory effect), radar, ...

* Ti, Bonnie Nettles, religious leader

Places

* Ti, Oklahoma, US * Thursday Island, Torres Strait *

Ticino Ticino (), sometimes Tessin (), officially the Republic and Canton of Ticino or less formally the Canton of Ticino,, informally ''Canton Ticino'' ; lmo, Canton Tesin ; german: Kanton Tessin ; french: Canton du Tessin ; rm, Chantun dal Tessin . ...

, a canton (federated state) of Switzerland

Science, technology, and mathematics

Biology and medicine

* Cabbage tree (New Zealand), called "tī kouka" * Terminal

ileum The ileum () is the final section of the small intestine in most higher vertebrates, including mammals, reptiles, and birds. In fish, the divisions of the small intestine are not as clear and the terms posterior intestine or distal intestine m ...

, the last part of the small intestine * Ti or Tī, a generic name in Polynesian languages for plants of the genus ''

Cordyline ''Cordyline'' is a genus of about 15 species of woody monocotyledonous flowering plants in family Asparagaceae, subfamily Lomandroideae. The subfamily has previously been treated as a separate family Laxmanniaceae, or Lomandraceae. Other authors ...

'', including: ** '' Cordyline fruticosa'', Tī, Tī pore (Māori), Kī (Hawaiian), a widely cultivated plant throughout Polynesia ** ''

Cordyline australis ''Cordyline australis'', commonly known as the cabbage tree, tī kōuka or cabbage-palm, is a widely branched monocot tree endemic to New Zealand. It grows up to tall with a stout trunk and sword-like leaves, which are clustered at the tips of ...

'' (Tī kōuka or Cabbage tree, New Zealand) ** ''

Cordyline banksii ''Cordyline banksii'' (forest cabbage tree, ''tī ngahere'') is a monocot tree endemic to New Zealand. The specific epithet ''banksii'' refers to the 18th-century botanist Joseph Banks. Distribution ''Cordyline banksii'' tolerates a wide vari ...

'' (Tī ngahere or Forest cabbage tree, New Zealand) ** ''

Cordyline indivisa ''Cordyline indivisa'' is a monocot tree endemic to New Zealand, where it is called mountain cabbage tree or bush flax. It is also known as the broad-leaved cabbage tree, and in the Māori language as . Distribution In the North Island ''Cordyli ...

'' (Tī toī, tōī or Mountain cabbage tree, New Zealand) ** ''

Cordyline obtecta ''Cordyline obtecta'' (Ti, Norfolk Island cabbage tree, Three Kings cabbage tree) is a widely branching monocot tree native to Norfolk Island (the type locality), and to northern New Zealand. The species name ''obtecta'' derives from the Latin ...

'' (Tī, Norfolk Island cabbage tree, Three Kings cabbage tree, Norfolk Island and New Zealand) ** ''

Cordyline pumilio ''Cordyline pumilio'', commonly known as the dwarf cabbage tree, pygmy cabbage tree or by its Māori names tī koraha or tī rauriki, is a narrow-leaved monocot shrub endemic to New Zealand. It usually grows up to tall, although rare examples ...

'' (Tī rauriki, Tī koraha or Dwarf cabbage tree, New Zealand) *

Therapeutic index The therapeutic index (TI; also referred to as therapeutic ratio) is a quantitative measurement of the relative safety of a drug. It is a comparison of the amount of a therapeutic agent that causes the therapeutic effect to the amount that causes ...

Tricuspid insufficiency Tricuspid regurgitation (TR), also called tricuspid insufficiency, is a type of valvular heart disease in which the tricuspid valve of the heart, located between the right atrium and right ventricle, does not close completely when the right ventr ...

, a leakage of blood within the heart

Computing

* Ti (prefix symbol), the prefix symbol of the binary unit prefix tebi *

Technical informatics Technical informatics is a European computer engineering equivalent, which includes, among others, digital logic and computational circuits, processor design, logic synthesis, computer architecture and organisation, low-level programming, firmware ...

, a subclass of computer engineering *

Acronis True Image Acronis Cyber Protect Home Office (previously known as Acronis True Image) is a software package produced by Acronis International GmbH that aims to protect the system from ransomware and allows users to backup and restore files or entire systems ...

, a disk imaging program

Other uses in science, technology, and mathematics

Topological insulator A topological insulator is a material whose interior behaves as an electrical insulator while its surface behaves as an electrical conductor, meaning that electrons can only move along the surface of the material. A topological insulator is an ...

* Thermal instability *

Thermodynamic integration Thermodynamic integration is a method used to compare the difference in free energy between two given states (e.g., A and B) whose potential energies U_A and U_B have different dependences on the spatial coordinates. Because the free energy of a ...

Titanium Titanium is a chemical element with the Symbol (chemistry), symbol Ti and atomic number 22. Found in nature only as an oxide, it can be reduced to produce a lustrous transition metal with a silver color, low density, and high strength, resista ...

, symbol Ti, a chemical element *

Truncated icosahedron In geometry, the truncated icosahedron is an Archimedean solid, one of 13 convex isogonal nonprismatic solids whose 32 faces are two or more types of regular polygons. It is the only one of these shapes that does not contain triangles or squares. ...

Other uses

Ti (concept) Ti () is the Chinese word for substance or body. The philosopher Zhang Zai described the ti as "that which is never absent, that is, through all transformations." In Neo-Confucianism, this concept is often associated with yong, which means "us ...

, a term meaning "substance" (體) in Chinese *

TI (cuneiform) Cuneiform TI or TÌL (Borger 2003 nr. ; U+122FE 𒋾) has the main meaning of "life" when used ideographically. The written sign developed from the drawing of an arrow, since the words meaning "arrow" and "life" were pronounced similarly in the S ...

, a sign in cuneiform writing * Ti, Old Swedish spelling of

Týr (; Old Norse: , ) is a god in Germanic mythology, a valorous and powerful member of the and patron of warriors and mythological heroes. In Norse mythology, which provides most of the surviving narratives about gods among the Germanic people ...

, deity of Norse mythology *

Tigrinya language (; also spelled Tigrigna) is an Ethio-Semitic language commonly spoken Eritrea and in northern Ethiopia's Tigray Region by the Tigrinya and Tigrayan peoples. It is also spoken by the global diaspora of these regions. History and literature ...

(ISO 639-1 code "ti") * Tenant inducement, in commercial real estate