clacvsclassWhat's the difference?

Quick tell: clac is a onomatopoeia, class is an adjective, so they fill different roles in a sentence.

Which to use

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

#36,310
“clac” frequency rank
#12,533
“class” frequency rank
48843
confusion score

Side-by-Side Comparison

Feature clac class
Definition Onomatopée qui traduit un bruit sec et rapide. Variante orthographique de clas.

Where the eye mixes clac and class

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

4 ch
clac
5 ch
class

Why the eye confuses clac with class

These two trip readers on the page rather than in the ear: clac is \klak\ while class is \klas\. 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 adjective), which is usually the fastest check. Our composite confusion score for this pair is 48843, 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\. class is at rank #12,533, tagged as anadj, pronounced \klas\.

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 48843, this pair ranks #175,609 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of clac vs class

Shared letters: acl. Private to "clac": -. Private to "class": s.

"clac" · 4 letters · shape CCVC  ·  "class" · 5 letters · shape CCVCC

Known mistypes of this pair

  • claccalc · cclac · clacc · clca · cllac · lcac
  • classcalss · cclass · clas · cllass · clsas · lcass

Frequently Asked Questions

Do "clac" and "class" mean the same thing in a sentence?
No - they are not even the same part of speech. "clac" is an onomatopoeia and "class" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "clac" or "class" show up more?
"class" is the more common of the two: it sits at frequency rank #12,533 in our French list, against #36,310 for "clac". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "clac" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "class" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #175,609 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "clac" and "class" 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 #175,609 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