Which to use
“reg” and “roi” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #25,469
- “reg” frequency rank
- #547
- “roi” frequency rank
- 26016
- confusion score
Side-by-Side Comparison
| Feature | reg | roi |
|---|---|---|
| Definition | Étendue désertique couverte de fragments rocheux issus de l'érosion éolienne. | Titre porté par celui qui règne sur un peuple, un État, en particulier un État monarchique, et qui tient sa fonction de l’hérédité ou de l’élection ; celui qui est à la tête d’un royaume. |
Where the eye mixes reg and roi
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Why the eye confuses reg with roi
A purely visual mix-up. reg (\ʁɛɡ\) and roi (\ʁwa\) 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 26016, derived from the frequency rank of both members and their visual similarity.
reg is recorded at frequency rank #25,469, classified as anoun, pronounced \ʁɛɡ\. roi is at rank #547, tagged as anoun, pronounced \ʁwa\.
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 26016, this pair ranks #337,593 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of reg vs roi
Shared letters: r. Private to "reg": eg. Private to "roi": io.
"reg" · 3 letters · shape CVC · "roi" · 3 letters · shape CVV
Frequently Asked Questions
Can "reg" and "roi" be used interchangeably?
In ordinary French text, does "reg" or "roi" show up more?
What to do next
Eye-level mix-up between "reg" and "roi" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "reg" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "roi" - compare definitions side by side with the headword page. Word entry
- This pair ranks #337,593 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "reg" and "roi" also get mixed up with nearby pairs, the highest-scored neighbour is "reg vs Reis". Nearby pair
Confusion rank #337,593 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.