Which to use
“CM1” and “CTC” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #26,672
- “CM1” frequency rank
- #44,964
- “CTC” frequency rank
- 71636
- confusion score
Side-by-Side Comparison
| Feature | CM1 | CTC |
|---|---|---|
| Definition | Quatrième classe de l’école élémentaire et première classe du cycle de consolidation. | Cellule tumorale circulante. |
Where the eye mixes CM1 and CTC
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. CM1 runs 2 letters (CC) against CTC's 3 (CCC) - the length gap alone is often enough to separate them once you know to check it.
Look-alike desk: CM1 vs CTC
A purely visual mix-up. CM1 (\se.ɛ.m‿œ̃\) 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 71636, derived from the frequency rank of both members and their visual similarity.
CM1 is recorded at frequency rank #26,672, classified as anoun, pronounced \se.ɛ.m‿œ̃\. 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 71636, this pair ranks #46,853 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of CM1 vs CTC
Shared letters: c. Private to "CM1": m. Private to "CTC": t.
"CM1" · 2 letters · shape CC · "CTC" · 3 letters · shape CCC
Frequently Asked Questions
Do "CM1" and "CTC" mean the same thing in a sentence?
Which is more common, "CM1" or "CTC"?
Useful next steps
Eye-level mix-up between "CM1" and "CTC" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "CM1" 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 #46,853 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "CM1" and "CTC" also get mixed up with nearby pairs, the highest-scored neighbour is "CCE vs CTC". Nearby pair
Confusion rank #46,853 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.