Which to use
“caduc” is an adjective and “casus” is a noun - they look or sound alike but fill different roles in a sentence.
- #39,197
- “caduc” frequency rank
- #48,398
- “casus” frequency rank
- 87595
- confusion score
Side-by-Side Comparison
| Feature | caduc | casus |
|---|---|---|
| Definition | Se dit d’un organe, notamment les feuilles, se détachant et tombant chaque année. | Chute. |
Letter map: caduc vs casus
Shared letters muted; letters that set caduc and casus apart highlighted. Shared run: 3. caduc and casus follow the identical consonant-vowel pattern (CVCVC). Same shape at a glance is often the real trap, independent of shared letters.
Grammar separator: caduc vs casus
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: caduc is anadjective and casusanoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 87595, derived from the frequency rank of both members and their visual similarity.
caduc is recorded at frequency rank #39,197, classified as anadj, pronounced \ka.dyk\. casus is at rank #48,398, tagged as anoun.
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 87595, this pair ranks #8,054 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of caduc vs casus
Shared letters: acu. Private to "caduc": d. Private to "casus": s.
"caduc" · 5 letters · shape CVCVC · "casus" · 5 letters · shape CVCVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "caduc" for "casus" ever safe?
Which is more common, "caduc" or "casus"?
Useful next steps
You've compared "caduc" and "casus". Here's where to go from here.
- Full dictionary entry for "caduc" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "casus" - compare definitions side by side with the headword page. Word entry
- This pair ranks #8,054 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "caduc" and "casus" 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 #8,054 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.