clacvscléTell them apart

Quick tell: clac is a onomatopoeia, clé is a noun, so they fill different roles in a sentence.

Which to use

“clac” is an onomatopoeia and “clé” is a noun - they look or sound alike but fill different roles in a sentence.

#36,310
“clac” frequency rank
#1,987
“clé” frequency rank
38297
confusion score

Side-by-Side Comparison

Feature clac clé
Definition Onomatopée qui traduit un bruit sec et rapide. Instrument de métal que l’on introduit dans une serrure pour ouvrir ou fermer un accès. Ancienne clé à panneton que l'on place et fait tourner dans la serrure d'une porte, d'un coffre, etc.

Where the eye mixes clac and clé

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
clac
3 ch
clé

Why the eye confuses clac with clé

These two trip readers on the page rather than in the ear: clac is \klak\ while clé is \kle\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (onomatopoeia vs noun), which is usually the fastest check. Our composite confusion score for this pair is 38297, derived from the frequency rank of both members and their visual similarity.

clac is recorded at frequency rank #36,310, classified as anonomatopoeia, pronounced \klak\. clé is at rank #1,987, 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 38297, this pair ranks #256,258 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of clac vs clé

Shared letters: cl. Private to "clac": a. Private to "clé": é.

"clac" · 4 letters · shape CCVC  ·  "clé" · 3 letters · shape CCV

Known mistypes of this pair

  • claccalc · cclac · clacc · clca · cllac · lcac

Frequently Asked Questions

Is swapping "clac" for "clé" ever safe?
No - they are not even the same part of speech. "clac" is an onomatopoeia and "clé" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "clac" or "clé" show up more?
"clé" is the more common of the two: it sits at frequency rank #1,987 in our French list, against #36,310 for "clac". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Eye-level mix-up between "clac" and "clé" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "clac" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "clé" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #256,258 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "clac" and "clé" also get mixed up with nearby pairs, the highest-scored neighbour is "chah vs clac". 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 #256,258 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