# EI vs em

> English confusable word pair

## The two words

### EI
*noun · frequency rank #23,521*
Initialism of employment insurance.

### em
*noun · IPA /ˈɛm/ · frequency rank #2,623*
The name of the Latin script letter M/m.

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