Which to use
“CST” and “cup” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #34,048
- “CST” frequency rank
- #8,225
- “cup” frequency rank
- 42273
- confusion score
Side-by-Side Comparison
| Feature | CST | cup |
|---|---|---|
| Definition | Cellule souche tumorale. | Cup menstruelle. |
Where the eye mixes CST and cup
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Look-alike desk: CST vs cup
A purely visual mix-up. CST (\se.ɛs.te\) 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 42273, derived from the frequency rank of both members and their visual similarity.
CST is recorded at frequency rank #34,048, classified as anoun, pronounced \se.ɛs.te\. 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 42273, this pair ranks #226,862 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of CST vs cup
Shared letters: c. Private to "CST": st. Private to "cup": pu.
"CST" · 3 letters · shape CCC · "cup" · 3 letters · shape CVC
Frequently Asked Questions
Is swapping "CST" for "cup" ever safe?
In ordinary French text, does "CST" or "cup" show up more?
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 "CST" 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 #226,862 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "CST" and "cup" also get mixed up with nearby pairs, the highest-scored neighbour is "CCE vs CST". Nearby pair
Confusion rank #226,862 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.