# tonic vs toxin

> English confusable word pair

## The two words

### tonic
*adjective · IPA /ˈtɒnɪk/ · frequency rank #17,507*
Pertaining to tension, especially of the muscles.

### toxin
*noun · IPA /ˈtɒksɪn/ · frequency rank #19,722*
A toxic substance, specifically a poison produced by the biological processes of organisms.

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