# toxin

> English word · Noun · IPA /ˈtɒksɪn/ · frequency rank #19,722

## Definitions
1. A toxic substance, specifically a poison produced by the biological processes of organisms.
2. Synonym of toxicant: a toxic substance in a body requiring removal.

## Etymology
From Latin toxicum, equivalent to toxi- + -in.

## Easily confused with
- **twin** (https://plainspell.com/en/vs/toxin-vs-twin)
- **train** (https://plainspell.com/en/vs/toxin-vs-train)
- **twain** (https://plainspell.com/en/vs/toxin-vs-twain)
- **Turin** (https://plainspell.com/en/vs/toxin-vs-turin)
- **toying** (https://plainspell.com/en/vs/toxin-vs-toying)
- **ton** (https://plainspell.com/en/vs/ton-vs-toxin)
- **tin** (https://plainspell.com/en/vs/tin-vs-toxin)
- **TOI** (https://plainspell.com/en/vs/toi-vs-toxin)
- **town** (https://plainspell.com/en/vs/town-vs-toxin)
- **thin** (https://plainspell.com/en/vs/thin-vs-toxin)
- **taxi** (https://plainspell.com/en/vs/taxi-vs-toxin)
- **torn** (https://plainspell.com/en/vs/torn-vs-toxin)
- **Toni** (https://plainspell.com/en/vs/toni-vs-toxin)
- **tori** (https://plainspell.com/en/vs/tori-vs-toxin)
- **toil** (https://plainspell.com/en/vs/toil-vs-toxin)
- **toon** (https://plainspell.com/en/vs/toon-vs-toxin)
- **topic** (https://plainspell.com/en/vs/topic-vs-toxin)
- **toxic** (https://plainspell.com/en/vs/toxic-vs-toxin)
- **token** (https://plainspell.com/en/vs/token-vs-toxin)
- **taxis** (https://plainspell.com/en/vs/taxis-vs-toxin)

## Common misspellings (7)
`otxin`, `toixn`, `toxinn`, `toxni`, `toxxin`, `ttoxin`, `txoin`

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