# MOR vs MoS

> English confusable word pair

## The two words

### MOR
*noun · IPA /ɛm əʊ ˈɑː(ɹ)/ · frequency rank #23,337*
A mid-ocean ridge: a submarine volcanic mountain range.

### MoS
*noun · frequency rank #16,536*
Alternative letter-case form of MOS (“manual of style”).

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