# erg vs erm

> English confusable word pair

## The two words

### erg
*noun · IPA /ɜːɡ/ · frequency rank #48,222*
A unit of work or energy, being the amount of work done by a force of one dyne applied through a distance of one centimeter. Equal to 10⁻⁷ joules.

### erm
*intj · IPA /ɜːm/ · frequency rank #21,789*
Used in hesitant speech, or to express uncertainty.

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