# em vs era

> English confusable word pair

## The two words

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

### era
*noun · IPA /ˈɪə.ɹə/ · frequency rank #2,153*
A time period of indeterminate length, generally more than one year.

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