cilsvsclésWhat's the difference?

Which to use

“cils” and “clés” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#15,107
“cils” frequency rank
#2,666
“clés” frequency rank
17773
confusion score

Side-by-Side Comparison

Feature cils clés
Definition Pluriel de cil. Pluriel de clé.

Where the eye mixes cils and clés

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

4 ch
cils
4 ch
clés

Why the eye confuses cils with clés

A purely visual mix-up. cils (\sil\) and clés (\kle\) 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 17773, derived from the frequency rank of both members and their visual similarity.

cils is recorded at frequency rank #15,107, classified as anoun, pronounced \sil\. clés is at rank #2,666, tagged as anoun, pronounced \kle\.

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 17773, this pair ranks #381,561 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of cils vs clés

Shared letters: cls. Private to "cils": i. Private to "clés": é.

"cils" · 4 letters · shape CVCC  ·  "clés" · 4 letters · shape CCVC

Known mistypes of this pair

  • cilsccils · cills · cilss · cisl · clis · icls

Frequently Asked Questions

Is swapping "cils" for "clés" ever safe?
No. They are said differently (\sil\ versus \kle\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "cils" or "clés"?
"clés" is the more common of the two: it sits at frequency rank #2,666 in our French list, against #15,107 for "cils". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "cils" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "clés" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #381,561 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "cils" and "clés" also get mixed up with nearby pairs, the highest-scored neighbour is "cils vs ciro". 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 #381,561 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list