Meanings
ti1
ti2
- A good luck plant (Cordyline fruticosa), an evergreen shrub native to China and the Pacific islands.
TI3
plural TIs
- abbreviationcountableinitialismuncountableInitialism of targeted individual (“a victim of gangstalking”).
- abbreviationcountableinitialismuncountablebiologyInitialism of tonic immobility.
- abbreviationcountableinitialismuncountablehuman sciencesInitialism of translation and interpreting.
Synonyms: T&I
- abbreviationcountableinitialismuncountablemedicineInitialism of therapeutic index.
- abbreviationcountableinitialismuncountableInitialism of training instructor.
- abbreviationinitialismInitialism of Thursday Island.
- abbreviationinitialismcompanyInitialism of Texas Instruments.
- abbreviationinitialismcompanyInitialism of Treasure Island (Hotel and Casino).
- abbreviationinitialismorganizationInitialism of Transparency International.
Synonyms & antonyms
nounA syllable used in solfège to represent the seventh note of a major scale.
More synonyms by meaning
nouna light strong grey lustrous corrosion-resistant metallic element used in strong lightweight alloys (as for airplane parts); the main sources are rutile and ilmenite
nounshrub with terminal tufts of elongated leaves used locally for thatching and clothing; thick sweet roots are used as food; tropical southeastern Asia, Australia and Hawaii
nounthe syllable naming the seventh (subtonic) note of any musical scale in solmization
Synonym sets from Open English WordNet, CC BY 4.0.
Origin
ti · noun
- LatinSāncte Iohannēs“Saint John (the Baptist)”
- Italiansi
- Middle Englishsi“seventh degree or note of Guido of Arezzo's hexachordal scales”
- Englishti
Coined by English music educator Sarah Anna Glover in 1812 as an alteration of si for her solmization, made so that every note of solfège would begin with a different letter, from Middle English si (“seventh degree or note of Guido of Arezzo's hexachordal scales”), Italian si in the solmization of Guido of Arezzo, from the initials of Latin Sāncte Iohannēs (“Saint John (the Baptist)”) in the lyrics of the scale-ascending hymn Ut queant laxis by Paulus Deacon.
More words from Middle English, Italian, Latin
Full word history & related roots →ti · noun
- Polynesian
- Englishti
From a Polynesian language, related to Hawaiian kī.
More words from Polynesian
Full word history & related roots →Rhymes & wordplay
Rhymes with ti
All rhymes →Sounds the same
Cite this entry
ti. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/ti
“ti.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/ti. Accessed November 2, 2026.
WatkinsX Dictionary, s.v. “ti,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/ti.
Source: ti on Wiktionary, CC BY-SA 4.0.