# STA vs su

> English confusable word pair

## The two words

### STA
*name · frequency rank #19,212*
Initialism of State Transport Authority.

### su
*noun · frequency rank #8,094*
Alternative form of xu (“former Vietnamese currency”).

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