classesvsculasseTell them apart

Which to use

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

#2,030
“classes” frequency rank
#32,364
“culasse” frequency rank
34394
confusion score

Side-by-Side Comparison

Feature classes culasse
Definition Pluriel de classe. Partie de derrière d’une arme à feu, canon, fusil, revolver, etc.

Where the eye mixes classes and culasse

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence.

7 ch
classes
7 ch
culasse

Why the eye confuses classes with culasse

A purely visual mix-up. classes (\klas\) and culasse (\ky.las\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 5 positions. Our composite confusion score for this pair is 34394, derived from the frequency rank of both members and their visual similarity.

classes is recorded at frequency rank #2,030, classified as anoun, pronounced \klas\. culasse is at rank #32,364, tagged as anoun, pronounced \ky.las\.

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 34394, this pair ranks #284,134 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of classes vs culasse

Shared letters: acels. Private to "classes": -. Private to "culasse": u.

"classes" · 7 letters · shape CCVCCVC  ·  "culasse" · 7 letters · shape CVCVCCV

Known mistypes of this pair

  • classescalsses · cclasses · clasess · classess · classse · cllasses · clsases · lcasses
  • culassecculasse · cluasse · cualsse · culase · culases · cullasse · culsase · uclasse

Frequently Asked Questions

Is swapping "classes" for "culasse" ever safe?
No. They are said differently (\klas\ versus \ky.las\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "classes" or "culasse"?
"classes" is the more common of the two: it sits at frequency rank #2,030 in our French list, against #32,364 for "culasse". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

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 "classes" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "culasse" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #284,134 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "classes" and "culasse" also get mixed up with nearby pairs, the highest-scored neighbour is "cuirasse vs culasse". 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 #284,134 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