# MCS vs my

> English confusable word pair

## The two words

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

### my
*determiner · IPA /maɪ/ · frequency rank #27*
First-person singular possessive determiner. See Appendix:Possessive#English.

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