TI

TI, Ti, ti or T.I. may refer to:

• Acronis True Image, a disk imaging program
• Cordyline fruticosa, a plant known as Ti by the Polynesians
• Taiwan independence, a political movement
• Tamgha-e-Imtiaz, a Pakistani civilian decoration
• Thermal instability
• Thermodynamic integration
• Thinking, as "Ti", see Understanding
• T'i, a term meaning "substance" (體) in Chinese
• Tī kouka, the New Zealand cabbage tree
• Tigrinya language ISO 639-1 code
• Time immemorial
• Turismo Internazionale (Alfa Romeo)
• Tourist information
• "Training instructor", the Drill instructor of the United States Air Force
• Twilight Imperium

Organizations

• Texas Instruments, an American electronics company
• TI Group, an English engineering company formerly known as Tube Investments
• Tiger Inn, a Princeton University eating club
• Toastmasters International, an international public speaking organization
• Tol Air IATA airline designator
• Transparency International, an international organisation devoted to fighting corruption.
• Treasure Island Hotel and Casino (as "ti"), an American hotel and casino resort on the Las Vegas Strip

People

• T.I. (born 1980), an American rap music artist
• Tyr (as "Ti" from Old Swedish), the deity of Norse mythology

Places

• Thousand Islands, an area
• Thursday Island, Torres Strait, an island in the Torres Strait
• Ti, Oklahoma
• Ticino, a canton (federated state) of Switzerland
• Ticonderoga, New York, United States
• Topsail Island, North Carolina, United States
• Turners Island, LLC, a railroad

Science and medicine

• Therapeutic index
• Titanium (as "Ti"), the chemical element of atomic number 22
• Tricuspid insufficiency, a leakage of blood within the heart