A surname from Vietnamese.

Initialism of Triple Reuptake Inhibitor.

Initialism of Toxic Release Inventory. / (artificial intelligence, US) Initialism of Toyota Research Institute.

(chiefly attributive) triathlon / (computer graphics) triangle / (bodybuilding, colloquial, uncommon) triceps

(chemistry) Used in combination with a known element name (e.g. 'tri-silicon') to designate an unknown element that would reside three periods lower than the known element on a Mendeleev-type periodic table. See Mendeleev's predicted elements.

three

(US) Acronym of Transportation Research Information Services.

simple past tense and past participle of try on

Third-person singular simple present indicative form of try on

(chemistry, obsolete) A variant of tri- used to indicate that the component that does not take the prefix occurs three times in the compound: trisphosphuret of copper is PCu₃; trisbenzeneazoresorcinol, C₆H(OH)₂(N₂Ph)₃.