# TDI vs tris

> English confusable word pair

## The two words

### TDI
*noun · frequency rank #49,091*
Abbreviation of toluene diisocyanate.

### tris
*noun · IPA /tɹɪs/ · frequency rank #27,007*
A flammable compound which forms a corrosive solution in water and is used as a buffer and emulsifying agent.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/vs/tdi-vs-tris