# radio

> English word · Noun · IPA /ˈɹeɪdiˌəʊ/ · frequency rank #1,059

## Definitions
1. The technology that allows for the transmission of sound or other signals by modulation of electromagnetic waves.
2. A device that can capture (receive) the signal sent over radio waves and render the modulated signal as sound.
3. Any audio playing device, such as the on-board entertainment system in a car, usually including a radio receiver as well as the capability to play audio from recorded media; see also car radio.
4. A device that can transmit radio signals.
5. The continuous broadcasting of sound via the Internet in the style of traditional radio.

## Etymology
Short for radiotelegraphy.

## Easily confused with
- **Rio** (https://plainspell.com/en/vs/radio-vs-rio)
- **Rao** (https://plainspell.com/en/vs/radio-vs-rao)
- **rain** (https://plainspell.com/en/vs/radio-vs-rain)
- **rail** (https://plainspell.com/en/vs/radio-vs-rail)
- **raid** (https://plainspell.com/en/vs/radio-vs-raid)
- **Ravi** (https://plainspell.com/en/vs/radio-vs-ravi)
- **redo** (https://plainspell.com/en/vs/radio-vs-redo)
- **rani** (https://plainspell.com/en/vs/radio-vs-rani)
- **Rami** (https://plainspell.com/en/vs/radio-vs-rami)
- **Rudi** (https://plainspell.com/en/vs/radio-vs-rudi)
- **Rafi** (https://plainspell.com/en/vs/radio-vs-rafi)
- **rapid** (https://plainspell.com/en/vs/radio-vs-rapid)
- **ratio** (https://plainspell.com/en/vs/radio-vs-ratio)
- **rodeo** (https://plainspell.com/en/vs/radio-vs-rodeo)
- **Rubio** (https://plainspell.com/en/vs/radio-vs-rubio)
- **Rambo** (https://plainspell.com/en/vs/radio-vs-rambo)
- **Rajiv** (https://plainspell.com/en/vs/radio-vs-rajiv)
- **radon** (https://plainspell.com/en/vs/radio-vs-radon)
- **Rahim** (https://plainspell.com/en/vs/radio-vs-rahim)
- **radius** (https://plainspell.com/en/vs/radio-vs-radius)

## Common misspellings (6)
`ardio`, `raddio`, `radoi`, `raido`, `rdaio`, `rradio`

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