# acceleration vs accelerator

> English confusable word pair

## The two words

### acceleration
*noun · IPA /əkˌsɛl.əˈɹeɪ.ʃən/ · frequency rank #10,640*
The act of accelerating, or the state of being accelerated; increase of motion or action; as opposed to retardation or deceleration.

### accelerator
*noun · IPA /əkˈsɛl.əˌɹeɪ.tɚ/ · frequency rank #16,630*
One who, or that which, accelerates.

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