cassisvschâssisWhich spelling fits?

Which to use

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

#25,242
“cassis” frequency rank
#11,189
“châssis” frequency rank
36431
confusion score

Side-by-Side Comparison

Feature cassis châssis
Definition Arbrisseau produisant le fruit du même nom, de nom scientifique Ribes nigrum. Ouvrage composé de plusieurs pièces de menuiserie formant ordinairement des cadres où l’on met des vitres, de la toile ou des feuilles de papier huilé, etc.

Where the eye mixes cassis and châssis

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.

6 ch
cassis
7 ch
châssis

Visual trap between cassis and châssis

A purely visual mix-up. cassis (\ka.sis\) and châssis (\ʃɑ.si\) 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 36431, derived from the frequency rank of both members and their visual similarity.

cassis is recorded at frequency rank #25,242, classified as anoun, pronounced \ka.sis\. châssis is at rank #11,189, tagged as anoun, pronounced \ʃɑ.si\.

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 36431, this pair ranks #269,673 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of cassis vs châssis

Shared letters: cis. Private to "cassis": a. Private to "châssis": .

"cassis" · 6 letters · shape CVCCVC  ·  "châssis" · 7 letters · shape CCVCCVC

Known mistypes of this pair

  • cassisacssis · casis · casiss · cassiss · casssi · ccassis · csasis

Frequently Asked Questions

Is swapping "cassis" for "châssis" ever safe?
No. They are said differently (\ka.sis\ versus \ʃɑ.si\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary French text, does "cassis" or "châssis" show up more?
"châssis" is the more common of the two: it sits at frequency rank #11,189 in our French list, against #25,242 for "cassis". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "cassis" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "châssis" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #269,673 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "cassis" and "châssis" also get mixed up with nearby pairs, the highest-scored neighbour is "cassis vs causses". 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 #269,673 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