Which to use
“radio” and “radium” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #1,010
- “radio” frequency rank
- #42,558
- “radium” frequency rank
- 43568
- confusion score
Side-by-Side Comparison
| Feature | radio | radium |
|---|---|---|
| Definition | Appareil émetteur et récepteur de radiocommunication. | Élément chimique de numéro atomique 88 et de symbole Ra qui fait partie de la série chimique des métaux alcalino-terreux dont les atomes se désintègrent spontanément, en émettant diverses radiations, pour donner naissance à d’autres atomes. |
Where the spellings diverge
Shared letters are muted; the letters that actually set radio and radium apart are highlighted. They share 4 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
radio and radium form a confusable pair in the French index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They differ by 1 letter(s) in length - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 43568, derived from the frequency rank of both members and their visual similarity.
radio is recorded at frequency rank #1,010, classified as anoun, pronounced \ʁa.djo\. radium is at rank #42,558, tagged as anoun, pronounced \ʁa.djɔm\.
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 43568, this pair ranks #217,070 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Frequency comparison
Frequently Asked Questions
Can "radio" and "radium" be used interchangeably?
Remembering radio vs radium
The fastest way to pick the right one every time.
- Read both glosses above and match the meaning you intend, only context separates this pair.
- See each word in full, definition, IPA, etymology and its other confusables. Full “radio” entry
- Browse more pairs most likely to be confused. Most confusable