CSMvscupConfusable pair

Which to use

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

#39,735
“CSM” frequency rank
#8,225
“cup” frequency rank
47960
confusion score

Side-by-Side Comparison

Feature CSM cup
Definition Centre de commutation du service des mobiles. Cup menstruelle.

Where the eye mixes CSM and cup

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
CSM
3 ch
cup

Why the eye confuses CSM with cup

A purely visual mix-up. CSM (\se.es.em\) and cup (\kœp\) 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 47960, 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\. cup is at rank #8,225, tagged as anoun, pronounced \kœp\.

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 47960, this pair ranks #182,786 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of CSM vs cup

Shared letters: c. Private to "CSM": ms. Private to "cup": pu.

"CSM" · 3 letters · shape CCC  ·  "cup" · 3 letters · shape CVC

Frequently Asked Questions

Can "CSM" and "cup" be used interchangeably?
No. They are said differently (\se.es.em\ versus \kœp\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "CSM" vs "cup" - which ranks higher?
"cup" is the more common of the two: it sits at frequency rank #8,225 in our French list, against #39,735 for "CSM". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "CSM" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "cup" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #182,786 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "CSM" and "cup" also get mixed up with nearby pairs, the highest-scored neighbour is "CCE vs CSM". Nearby pair

Confusion rank #182,786 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