# MCS vs MERS

> English confusable word pair

## The two words

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

### MERS
*noun · IPA /mɝz/ · frequency rank #45,510*
Acronym of Middle East respiratory syndrome.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/vs/mcs-vs-mers