Which to use
“rad” is a symbol and “roy” is a noun - they look or sound alike but fill different roles in a sentence.
- #28,705
- “rad” frequency rank
- #3,220
- “roy” frequency rank
- 31925
- confusion score
Side-by-Side Comparison
| Feature | rad | roy |
|---|---|---|
| Definition | Symbole du radian, unité de mesure d’angle plan du Système international (SI). | De 1694 à 1740 : Orthographe de l’Académie française de roi. |
Letter map: rad vs roy
Shared letters muted; letters that set rad and roy apart highlighted. Shared run: 1.
Part-of-speech tell for rad / roy
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: rad is asymbol and royanoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 31925, derived from the frequency rank of both members and their visual similarity.
rad is recorded at frequency rank #28,705, classified as asymbol. roy is at rank #3,220, 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 31925, this pair ranks #300,687 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of rad vs roy
Shared letters: r. Private to "rad": ad. Private to "roy": oy.
"rad" · 3 letters · shape CVC · "roy" · 3 letters · shape CVV
Frequently Asked Questions
Do "rad" and "roy" mean the same thing in a sentence?
In ordinary French text, does "rad" or "roy" show up more?
What to do next
Done with this confusable. These links stay specific to "rad" and "roy".
- Full dictionary entry for "rad" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "roy" - compare definitions side by side with the headword page. Word entry
- This pair ranks #300,687 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "rad" and "roy" also get mixed up with nearby pairs, the highest-scored neighbour is "rad vs RAMQ". Nearby pair
Confusion rank #300,687 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.