# tau vs Tsui

> English confusable word pair

## The two words

### tau
*noun · IPA /taʊ/ · frequency rank #19,983*
The letter Τ /τ in the Greek alphabet; being the nineteenth letter of the Classical and Modern Greek, and the twenty-first letter of the Old and Ancient Greek alphabets.

### Tsui
*name · frequency rank #46,827*
A surname.

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