# muck vs mucus

> English confusable word pair

## The two words

### muck
*noun · IPA /mʌk/ · frequency rank #24,837*
Slimy mud, sludge.

### mucus
*noun · IPA /ˈmjuːkəs/ · frequency rank #23,915*
A slippery secretion from the lining of the mucous membranes.

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