# I's vs io

> English confusable word pair

## The two words

### I's
*noun · frequency rank #25,096*
plural of I (letter of the alphabet or the ego)

### io
*noun · IPA /ˈaɪəʊ/ · frequency rank #16,946*
A type of moth, the io moth.

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