noun

• (music) A syllable used in solfège to represent the seventh note of a major scale.
• The good luck plant (Cordyline fruticosa), an evergreen shrub.
• (electronics) Initialism of time interval. [A period of time with fixed, well-defined limits.]
• Initialism of targeted individual (“a victim of gangstalking”).
• (zoology) Initialism of tonic immobility. [(zoology) A behaviour in which an animal appears to be temporarily paralysed and unresponsive to external stimuli, for example in response to the threat of a predator.]
• (translation studies) Initialism of translation and interpreting.
• (pharmacology) Initialism of therapeutic index. [(pharmacology) The ratio of the median toxic dose of a drug to its median effective dose, used to gauge the safety of a particular medication. A low therapeutic index indicates that the drug is easily overdosed.]
• (company) Initialism of Texas Instruments.
• (company) Initialism of Treasure Island (Hotel and Casino).
• (organization) Initialism of Transparency International.