casusvsclassWhat's the difference?

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

Which to use

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

#48,398
“casus” frequency rank
#12,533
“class” frequency rank
60931
confusion score

Side-by-Side Comparison

Feature casus class
Definition Chute. Variante orthographique de clas.

Letter map: casus vs class

Shared letters muted; letters that set casus and class apart highlighted. Shared run: 4.

5 ch
casus
5 ch
class

Grammar separator: casus vs class

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: casus is anoun and classanadjective. On the page they share most of their letters but differ in 3 positions. Our composite confusion score for this pair is 60931, derived from the frequency rank of both members and their visual similarity.

casus is recorded at frequency rank #48,398, classified as anoun. class is at rank #12,533, tagged as anadj, pronounced \klas\.

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 60931, this pair ranks #95,010 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of casus vs class

Shared letters: acs. Private to "casus": u. Private to "class": l.

"casus" · 5 letters · shape CVCVC  ·  "class" · 5 letters · shape CCVCC

Known mistypes of this pair

  • casusacsus · cassu · cassus · casuss · causs · ccasus · csaus
  • classcalss · cclass · clas · cllass · clsas · lcass

Frequently Asked Questions

Do "casus" and "class" mean the same thing in a sentence?
No - they are not even the same part of speech. "casus" is a noun and "class" an adjective, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "casus" vs "class" - which ranks higher?
"class" is the more common of the two: it sits at frequency rank #12,533 in our French list, against #48,398 for "casus". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pair "casus" vs "class" is on the table, pick a follow-up below.

  • Full dictionary entry for "casus" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "class" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #95,010 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "casus" and "class" also get mixed up with nearby pairs, the highest-scored neighbour is "cakes vs casus". 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 #95,010 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