# alien vs anion

> English confusable word pair

## The two words

### alien
*noun · IPA /ˈeɪ.li.ən/ · frequency rank #4,347*
A person, animal, plant, or other thing which is from outside the family, group, organization, or territory under consideration.

### anion
*noun · IPA /ˈænˌaɪ.ən/ · frequency rank #41,506*
A negatively charged ion.

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