Which to use
“cas” is a noun and “Ct” is a name - they look or sound alike but fill different roles in a sentence.
- #157
- “cas” frequency rank
- #9,461
- “Ct” frequency rank
- 9618
- confusion score
Side-by-Side Comparison
| Feature | cas | Ct |
|---|---|---|
| Definition | Accident, aventure, conjoncture, occasion ; fait arrivé, ou qui peut arriver. | « Combault » dans Pontault-Combault. |
Where the eye mixes cas and Ct
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Look-alike desk: cas vs Ct
These two trip readers on the page rather than in the ear: cas is \kɑ\ while Ct is \kɔ̃.bo\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs name), which is usually the fastest check. Our composite confusion score for this pair is 9618, derived from the frequency rank of both members and their visual similarity.
cas is recorded at frequency rank #157, classified as anoun, pronounced \kɑ\. Ct is at rank #9,461, tagged as aname, pronounced \kɔ̃.bo\.
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 9618, this pair ranks #416,014 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of cas vs Ct
Shared letters: c. Private to "cas": as. Private to "Ct": t.
"cas" · 3 letters · shape CVC · "Ct" · 2 letters · shape CC
Frequently Asked Questions
Can "cas" and "Ct" be used interchangeably?
Which is more common, "cas" or "Ct"?
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 "cas" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "Ct" - compare definitions side by side with the headword page. Word entry
- This pair ranks #416,014 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "cas" and "Ct" also get mixed up with nearby pairs, the highest-scored neighbour is "CCE vs Ct". Nearby pair
Confusion rank #416,014 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.