Which to use
“CSM” and “CSS” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #39,735
- “CSM” frequency rank
- #18,705
- “CSS” frequency rank
- 58440
- confusion score
Side-by-Side Comparison
| Feature | CSM | CSS |
|---|---|---|
| Definition | Centre de commutation du service des mobiles. | Séquence d’instructions de rendu visuel, auditif ou tactile d’une ressource HTML ou XML. |
Where the eye mixes CSM and CSS
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses CSM with CSS
A purely visual mix-up. CSM (\se.es.em\) and CSS (\se ɛ.s‿ɛs\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by a single letter - m in “CSM” becomes s in “CSS”. Our composite confusion score for this pair is 58440, derived from the frequency rank of both members and their visual similarity.
CSM is recorded at frequency rank #39,735, classified as anoun, pronounced \se.es.em\. CSS is at rank #18,705, tagged as anoun, pronounced \se ɛ.s‿ɛs\.
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 58440, this pair ranks #109,071 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of CSM vs CSS
Shared letters: cs. Private to "CSM": m. Private to "CSS": -.
"CSM" · 3 letters · shape CCC · "CSS" · 3 letters · shape CCC
Frequently Asked Questions
Is swapping "CSM" for "CSS" ever safe?
In ordinary French text, does "CSM" or "CSS" show up more?
Useful next steps
Eye-level mix-up between "CSM" and "CSS" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "CSM" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "CSS" - compare definitions side by side with the headword page. Word entry
- This pair ranks #109,071 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "CSM" and "CSS" also get mixed up with nearby pairs, the highest-scored neighbour is "CCE vs CSM". Nearby pair
Confusion rank #109,071 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.