# MCS vs mucus

> English confusable word pair

## The two words

### MCS
*noun · frequency rank #30,883*
Initialism of multiple chemical sensitivity.

### 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/mcs-vs-mucus