Which to use
“chiffrer” is a verb and “chiffres” is a noun - they look or sound alike but fill different roles in a sentence.
- #24,900
- “chiffrer” frequency rank
- #1,434
- “chiffres” frequency rank
- 26334
- confusion score
Side-by-Side Comparison
| Feature | chiffrer | chiffres |
|---|---|---|
| Definition | Se servir des chiffres pour calculer. | Pluriel de chiffre. |
Where the eye mixes chiffrer and chiffres
Muted = shared; highlighted = the visual trap. They share 7 letters in sequence. chiffrer and chiffres follow the identical consonant-vowel pattern (CCVCCCVC). Same shape at a glance is often the real trap, independent of shared letters.
Visual trap between chiffrer and chiffres
These two trip readers on the page rather than in the ear: chiffrer is \ʃi.fʁe\ while chiffres is \ʃifʁ\. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - r in “chiffrer” becomes s in “chiffres”, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 26334, derived from the frequency rank of both members and their visual similarity.
chiffrer is recorded at frequency rank #24,900, classified as averb, pronounced \ʃi.fʁe\. chiffres is at rank #1,434, tagged as anoun, pronounced \ʃifʁ\.
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 26334, this pair ranks #335,647 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of chiffrer vs chiffres
Shared letters: cefhir. Private to "chiffrer": -. Private to "chiffres": s.
"chiffrer" · 8 letters · shape CCVCCCVC · "chiffres" · 8 letters · shape CCVCCCVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "chiffrer" for "chiffres" ever safe?
Which is more common, "chiffrer" or "chiffres"?
Useful next steps
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "chiffrer" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "chiffres" - compare definitions side by side with the headword page. Word entry
- This pair ranks #335,647 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "chiffrer" and "chiffres" also get mixed up with nearby pairs, the highest-scored neighbour is "chiffrée vs chiffrer". 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 #335,647 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.