chiassevscrasseWhat's the difference?

Quick tell: chiasse is a noun, crasse is an adjective, so they fill different roles in a sentence.

Which to use

“chiasse” is a noun and “crasse” is an adjective - they look or sound alike but fill different roles in a sentence.

#41,180
“chiasse” frequency rank
#20,106
“crasse” frequency rank
61286
confusion score

Side-by-Side Comparison

Feature chiasse crasse
Definition Excréments de mouche, de ver. Qui est épais.

Where the eye mixes chiasse and crasse

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. chiasse runs 7 letters (CCVVCCV) against crasse's 6 (CCVCCV) - the length gap alone is often enough to separate them once you know to check it.

7 ch
chiasse
6 ch
crasse

Look-alike desk: chiasse vs crasse

These two trip readers on the page rather than in the ear: chiasse is \ʃjas\ while crasse is \kʁas\. 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 (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 61286, derived from the frequency rank of both members and their visual similarity.

chiasse is recorded at frequency rank #41,180, classified as anoun, pronounced \ʃjas\. crasse is at rank #20,106, tagged as anadj, pronounced \kʁas\.

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 61286, this pair ranks #93,064 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of chiasse vs crasse

Shared letters: aces. Private to "chiasse": hi. Private to "crasse": r.

"chiasse" · 7 letters · shape CCVVCCV  ·  "crasse" · 6 letters · shape CCVCCV

Known mistypes of this pair

  • chiassecchiasse · chhiasse · chisase · cihasse · hciasse
  • crassecarsse · ccrasse · crase · crases · crrasse · crsase · rcasse

Frequently Asked Questions

Do "chiasse" and "crasse" mean the same thing in a sentence?
No - they are not even the same part of speech. "chiasse" is a noun and "crasse" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "chiasse" or "crasse" show up more?
"crasse" is the more common of the two: it sits at frequency rank #20,106 in our French list, against #41,180 for "chiasse". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "chiasse" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "crasse" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #93,064 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "chiasse" and "crasse" also get mixed up with nearby pairs, the highest-scored neighbour is "chiasse vs cuirasse". 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 #93,064 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