# radio vs radon

> English confusable word pair

## The two words

### radio
*noun · IPA /ˈɹeɪdiˌəʊ/ · frequency rank #1,059*
The technology that allows for the transmission of sound or other signals by modulation of electromagnetic waves.

### radon
*noun · IPA /ˈɹeɪdɒn/ · frequency rank #33,384*
The chemical element (symbol Rn, formerly Ro) with atomic number 86. It is an odorless, colorless, chemically inert but radioactive noble gas.

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