# choo

> English word · Noun · IPA /tʃuː/ · frequency rank #20,061

## Definitions
1. The sound of a locomotive whistle.

## Easily confused with
- **co** (https://plainspell.com/en/vs/choo-vs-co)
- **cop** (https://plainspell.com/en/vs/choo-vs-cop)
- **con** (https://plainspell.com/en/vs/choo-vs-con)
- **cow** (https://plainspell.com/en/vs/choo-vs-cow)
- **cos** (https://plainspell.com/en/vs/choo-vs-cos)
- **col** (https://plainspell.com/en/vs/choo-vs-col)
- **cox** (https://plainspell.com/en/vs/choo-vs-cox)
- **cod** (https://plainspell.com/en/vs/choo-vs-cod)
- **chu** (https://plainspell.com/en/vs/choo-vs-chu)
- **cor** (https://plainspell.com/en/vs/choo-vs-cor)
- **coo** (https://plainspell.com/en/vs/choo-vs-coo)
- **cot** (https://plainspell.com/en/vs/choo-vs-cot)
- **Coe** (https://plainspell.com/en/vs/choo-vs-coe)
- **coz** (https://plainspell.com/en/vs/choo-vs-coz)
- **coa** (https://plainspell.com/en/vs/choo-vs-coa)
- **coy** (https://plainspell.com/en/vs/choo-vs-coy)
- **cob** (https://plainspell.com/en/vs/choo-vs-cob)
- **cog** (https://plainspell.com/en/vs/choo-vs-cog)
- **CHP** (https://plainspell.com/en/vs/choo-vs-chp)
- **CRO** (https://plainspell.com/en/vs/choo-vs-cro)

## Common misspellings (4)
`cchoo`, `chhoo`, `coho`, `hcoo`

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