# STM vs Sui

> English confusable word pair

## The two words

### STM
*noun · frequency rank #38,181*
Initialism of scanning tunneling microscope.

### Sui
*name · IPA /sweɪ/ · frequency rank #28,040*
The Sui dynasty of China which ruled from 581 to 618.

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