# SLE vs sud

> English confusable word pair

## The two words

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

### sud
*noun · IPA /sʌd/ · frequency rank #37,717*
A bubble of lather or foam (the singular of suds).

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