Which to use
“CDD” and “CTC” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #11,538
- “CDD” frequency rank
- #44,964
- “CTC” frequency rank
- 56502
- confusion score
Side-by-Side Comparison
| Feature | CDD | CTC |
|---|---|---|
| Definition | Contrat à durée déterminée, type de contrat de travail en France. | Cellule tumorale circulante. |
Where the eye mixes CDD and CTC
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Look-alike desk: CDD vs CTC
A purely visual mix-up. CDD (\se.de.de\) and CTC (\se.te.se\) 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 2 positions. Our composite confusion score for this pair is 56502, derived from the frequency rank of both members and their visual similarity.
CDD is recorded at frequency rank #11,538, classified as anoun, pronounced \se.de.de\. CTC is at rank #44,964, tagged as anoun, pronounced \se.te.se\.
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 56502, this pair ranks #120,710 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of CDD vs CTC
Shared letters: c. Private to "CDD": d. Private to "CTC": t.
"CDD" · 3 letters · shape CCC · "CTC" · 3 letters · shape CCC
Frequently Asked Questions
Can "CDD" and "CTC" be used interchangeably?
Frequency check: "CDD" vs "CTC" - which ranks higher?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "CDD" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "CTC" - compare definitions side by side with the headword page. Word entry
- This pair ranks #120,710 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "CDD" and "CTC" also get mixed up with nearby pairs, the highest-scored neighbour is "CCE vs CTC". Nearby pair
Confusion rank #120,710 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.