# activator vs actuator

> English confusable word pair

## The two words

### activator
*noun · frequency rank #37,789*
One who, or that which, activates.

### actuator
*noun · IPA /ˈæk.tjuː.eɪ.tə(ɹ)/ · frequency rank #38,263*
Something that actuates something else.

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