# T3 vs Tu

> English confusable word pair

## The two words

### T3
*noun · IPA /ˌtiːˈθɹiː/ · frequency rank #25,607*
Abbreviation of triiodothyronine.

### Tu
*name · frequency rank #10,301*
A surname from Chinese.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/vs/t3-vs-tu