# ICAO

> English word · Proper noun · IPA /ˌaɪˈkeɪˌoʊ/ · frequency rank #41,186

## Definitions
1. Acronym of International Civil Aviation Organization, a United Nations agency headquartered in Montreal, Canada.

## Easily confused with
- **io** (https://plainspell.com/en/vs/icao-vs-io)
- **ice** (https://plainspell.com/en/vs/icao-vs-ice)
- **IRA** (https://plainspell.com/en/vs/icao-vs-ira)
- **iso** (https://plainspell.com/en/vs/icao-vs-iso)
- **IMO** (https://plainspell.com/en/vs/icao-vs-imo)
- **ICC** (https://plainspell.com/en/vs/icao-vs-icc)
- **ISA** (https://plainspell.com/en/vs/icao-vs-isa)
- **icy** (https://plainspell.com/en/vs/icao-vs-icy)
- **Ida** (https://plainspell.com/en/vs/icao-vs-ida)
- **IPO** (https://plainspell.com/en/vs/icao-vs-ipo)
- **ICT** (https://plainspell.com/en/vs/icao-vs-ict)
- **IPA** (https://plainspell.com/en/vs/icao-vs-ipa)
- **ICU** (https://plainspell.com/en/vs/icao-vs-icu)
- **ich** (https://plainspell.com/en/vs/icao-vs-ich)
- **ICO** (https://plainspell.com/en/vs/icao-vs-ico)
- **Ima** (https://plainspell.com/en/vs/icao-vs-ima)
- **ICS** (https://plainspell.com/en/vs/icao-vs-ics)
- **ICD** (https://plainspell.com/en/vs/icao-vs-icd)
- **Iga** (https://plainspell.com/en/vs/icao-vs-iga)
- **Ivo** (https://plainspell.com/en/vs/icao-vs-ivo)

## Common misspellings (3)
`iaco`, `iccao`, `icoa`

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