# reaction vs reactor

> English confusable word pair

## The two words

### reaction
*noun · IPA /ɹiˈækʃən/ · frequency rank #1,915*
An action or statement in response to a stimulus or other event.

### reactor
*noun · IPA /ɹiˈæktɚ/ · frequency rank #9,239*
A person who responds to a suggestion, stimulation or other influence.

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