# SMS vs su

> English confusable word pair

## The two words

### SMS
*name · IPA /ˌɛs ɛm ˈɛs/ · frequency rank #11,968*
Initialism of short message service: a system enabling cell phones to send or receive text messages.

### 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: 2026-09-03.
Canonical page: https://plainspell.com/en/vs/sms-vs-su