# SLE vs STM

> English confusable word pair

## The two words

### SLE
*noun · frequency rank #48,486*
Initialism of systemic lupus erythematosus.

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

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