# TDI vs TUC

> English confusable word pair

## The two words

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

### TUC
*name · frequency rank #43,436*
Initialism of Trades Union Congress, a federation of trade unions in England and Wales.

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