Which to use
“radier” and “radium” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #41,992
- “radier” frequency rank
- #42,558
- “radium” frequency rank
- 84550
- confusion score
Side-by-Side Comparison
| Feature | radier | radium |
|---|---|---|
| Definition | Plate-forme en béton, en pierre, en charpente, etc. sur laquelle on assoit un bâtiment. | 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 eye mixes radier and radium
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.
Visual trap between radier and radium
A purely visual mix-up. radier (\ʁa.dje\) and radium (\ʁa.djɔm\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 84550, derived from the frequency rank of both members and their visual similarity.
radier is recorded at frequency rank #41,992, classified as anoun, pronounced \ʁa.dje\. 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 84550, this pair ranks #12,785 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of radier vs radium
Shared letters: adir. Private to "radier": e. Private to "radium": mu.
"radier" · 6 letters · shape CVCVVC · "radium" · 6 letters · shape CVCVVC
Known mistypes of this pair
Frequently Asked Questions
Can "radier" and "radium" be used interchangeably?
In ordinary French text, does "radier" or "radium" show up more?
Useful next steps
Eye-level mix-up between "radier" and "radium" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "radier" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "radium" - compare definitions side by side with the headword page. Word entry
- This pair ranks #12,785 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "radier" and "radium" also get mixed up with nearby pairs, the highest-scored neighbour is "radier vs rainier". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #12,785 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.