# smut vs sud

> English confusable word pair

## The two words

### smut
*noun · IPA /smʌt/ · frequency rank #34,290*
Soot.

### 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/smut-vs-sud