# em vs era

> Spanish confusable word pair

## The two words

### em
*preposition · IPA [ĩ] · frequency rank #7,152*
En.

### era
*noun · IPA [ˈeɾa] · frequency rank #65*
Periodo geológico de larga duración.

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