Which to use
“CSR” is a noun and “Cyr” is a name - they look or sound alike but fill different roles in a sentence.
- #45,537
- “CSR” frequency rank
- #12,760
- “Cyr” frequency rank
- 58297
- confusion score
Side-by-Side Comparison
| Feature | CSR | Cyr |
|---|---|---|
| Definition | Demande de signature de certificat : message envoyé à partir d'un demandeur à une autorité de certification afin de demander un certificat d'identité numérique. | Nom de famille. |
Where the eye mixes CSR and Cyr
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses CSR with Cyr
These two trip readers on the page rather than in the ear: CSR is \se.ɛs.ɛʁ\ while Cyr is \siʁ\. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - s in “CSR” becomes y in “Cyr”, and the parts of speech differ too (noun vs name), which is usually the fastest check. Our composite confusion score for this pair is 58297, derived from the frequency rank of both members and their visual similarity.
CSR is recorded at frequency rank #45,537, classified as anoun, pronounced \se.ɛs.ɛʁ\. Cyr is at rank #12,760, tagged as aname, pronounced \siʁ\.
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 58297, this pair ranks #109,883 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of CSR vs Cyr
Shared letters: cr. Private to "CSR": s. Private to "Cyr": y.
"CSR" · 3 letters · shape CCC · "Cyr" · 3 letters · shape CVC
Frequently Asked Questions
Is swapping "CSR" for "Cyr" ever safe?
Frequency check: "CSR" vs "Cyr" - which ranks higher?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "CSR" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "Cyr" - compare definitions side by side with the headword page. Word entry
- This pair ranks #109,883 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "CSR" and "Cyr" also get mixed up with nearby pairs, the highest-scored neighbour is "ciro vs CSR". Nearby pair
Confusion rank #109,883 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.