chauvsclausWhich spelling fits?

Which to use

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

#41,178
“chau” frequency rank
#39,220
“claus” frequency rank
80398
confusion score

Side-by-Side Comparison

Feature chau claus
Definition Froncer. Participe passé masculin singulier du verbe claure.

Where the eye mixes chau and claus

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. chau runs 4 letters (CCVV) against claus's 5 (CCVVC) - the length gap alone is often enough to separate them once you know to check it.

4 ch
chau
5 ch
claus

Look-alike desk: chau vs claus

A purely visual mix-up. chau (\cau˦\) and claus ([ˈklaws]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 80398, derived from the frequency rank of both members and their visual similarity.

chau is recorded at frequency rank #41,178, classified as averb, pronounced \cau˦\. claus is at rank #39,220, tagged as averb, pronounced [ˈklaws].

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 80398, this pair ranks #21,039 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of chau vs claus

Shared letters: acu. Private to "chau": h. Private to "claus": ls.

"chau" · 4 letters · shape CCVV  ·  "claus" · 5 letters · shape CCVVC

Known mistypes of this pair

  • chau ← cahu · cchau · chhau · chua · hcau
  • claus ← calus · cclaus · clasu · clauss · cllaus · cluas · lcaus

Frequently Asked Questions

Is swapping "chau" for "claus" ever safe?
No. They are said differently (\cau˦\ versus [ˈklaws]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "chau" or "claus"?
"claus" is the more common of the two: it sits at frequency rank #39,220 in our French list, against #41,178 for "chau". 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 "chau" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "claus" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #21,039 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "chau" and "claus" also get mixed up with nearby pairs, the highest-scored neighbour is "chah vs chau". 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 #21,039 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