classeurvscrasseuxConfusable pair

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

Which to use

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

#31,888
“classeur” frequency rank
#34,965
“crasseux” frequency rank
66853
confusion score

Side-by-Side Comparison

Feature classeur crasseux
Definition Meuble à compartiments qui sert à classer des papiers, des documents. Qui est couvert de crasse.

Where the eye mixes classeur and crasseux

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. classeur and crasseux follow the identical consonant-vowel pattern (CCVCCVVC). Same shape at a glance is often the real trap, independent of shared letters.

8 ch
classeur
8 ch
crasseux

Why the eye confuses classeur with crasseux

These two trip readers on the page rather than in the ear: classeur is \kla.sœʁ\ while crasseux is \kʁa.sø\. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 66853, derived from the frequency rank of both members and their visual similarity.

classeur is recorded at frequency rank #31,888, classified as anoun, pronounced \kla.sœʁ\. crasseux is at rank #34,965, tagged as anadj, pronounced \kʁa.sø\.

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 66853, this pair ranks #65,984 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of classeur vs crasseux

Shared letters: acersu. Private to "classeur": l. Private to "crasseux": x.

"classeur" · 8 letters · shape CCVCCVVC  ·  "crasseux" · 8 letters · shape CCVCCVVC

Known mistypes of this pair

  • classeur ← calsseur · cclasseur · clasesur · claseur · classeru · classeurr · classuer · cllasseur
  • crasseux ← carsseux · ccrasseux · crasesux · craseux · crasseuxx · crassexu · crassuex · crrasseux

Frequently Asked Questions

Can "classeur" and "crasseux" be used interchangeably?
No - they are not even the same part of speech. "classeur" is a noun and "crasseux" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "classeur" or "crasseux" show up more?
"classeur" is the more common of the two: it sits at frequency rank #31,888 in our French list, against #34,965 for "crasseux". 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 "classeur" and "crasseux" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "classeur" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "crasseux" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #65,984 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "classeur" and "crasseux" also get mixed up with nearby pairs, the highest-scored neighbour is "casseur vs crasseux". 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 #65,984 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