# erg vs ERS

> 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.

### ERS
*noun · frequency rank #23,262*
Acronym of energy recovery system, an electric generation, storage, and propulsion system used in Formula One, which generates electricity by scavenging excess power and energy, stores energy in batteries, and boosts acceleration with electric motors assisting the gasoline engine.

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