# io

> English word · Noun · IPA /ˈaɪəʊ/ · frequency rank #16,946

## Definitions
1. A type of moth, the io moth.

## Etymology
From New Latin, from Ancient Greek Ἰώ (Iṓ, “Io”).

## Easily confused with
- **is** (https://plainspell.com/en/vs/io-vs-is)
- **it** (https://plainspell.com/en/vs/io-vs-it)
- **IV** (https://plainspell.com/en/vs/io-vs-iv)
- **IP** (https://plainspell.com/en/vs/io-vs-ip)
- **IQ** (https://plainspell.com/en/vs/io-vs-iq)
- **iz** (https://plainspell.com/en/vs/io-vs-iz)
- **its** (https://plainspell.com/en/vs/io-vs-its)
- **ion** (https://plainspell.com/en/vs/io-vs-ion)
- **iOS** (https://plainspell.com/en/vs/io-vs-ios)
- **IRS** (https://plainspell.com/en/vs/io-vs-irs)
- **IRA** (https://plainspell.com/en/vs/io-vs-ira)
- **ivy** (https://plainspell.com/en/vs/io-vs-ivy)
- **iso** (https://plainspell.com/en/vs/io-vs-iso)
- **ISA** (https://plainspell.com/en/vs/io-vs-isa)
- **ISS** (https://plainspell.com/en/vs/io-vs-iss)
- **IRL** (https://plainspell.com/en/vs/io-vs-irl)
- **IPO** (https://plainspell.com/en/vs/io-vs-ipo)
- **IPA** (https://plainspell.com/en/vs/io-vs-ipa)
- **ips** (https://plainspell.com/en/vs/io-vs-ips)
- **ISP** (https://plainspell.com/en/vs/io-vs-isp)

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