castvscasusConfusable pair

Which to use

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

#28,476
“cast” frequency rank
#48,398
“casus” frequency rank
76874
confusion score

Side-by-Side Comparison

Feature cast casus
Definition Synonyme de transtypage. Chute.

Letter map: cast vs casus

Shared letters muted; letters that set cast and casus apart highlighted. Shared run: 3. cast runs 4 letters (CVCC) against casus's 5 (CVCVC) - the length gap alone is often enough to separate them once you know to check it.

4 ch
cast
5 ch
casus

Spelling & dictionary notes on cast vs casus

cast and casus are indexed as a confusable French pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 76874, derived from the frequency rank of both members and their visual similarity.

cast is recorded at frequency rank #28,476, classified as anoun, pronounced \kast\. 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 76874, this pair ranks #29,948 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of cast vs casus

Shared letters: acs. Private to "cast": t. Private to "casus": u.

"cast" · 4 letters · shape CVCC  ·  "casus" · 5 letters · shape CVCVC

Known mistypes of this pair

  • cast ← acst · casst · castt · ccast · csat
  • casus ← acsus · cassu · cassus · casuss · causs · ccasus · csaus

Frequently Asked Questions

Can "cast" and "casus" be used interchangeably?
No. They differ by 1 letter(s) in length, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Frequency check: "cast" vs "casus" - which ranks higher?
"cast" is the more common of the two: it sits at frequency rank #28,476 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.

After this comparison

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

  • Full dictionary entry for "cast" 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 #29,948 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "cast" 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 #29,948 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