Which to use
“CAF” and “CFF” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #10,286
- “CAF” frequency rank
- #46,639
- “CFF” frequency rank
- 56925
- confusion score
Side-by-Side Comparison
| Feature | CAF | CFF |
|---|---|---|
| Definition | Caisse d’allocations familiales. | Société anonyme (détenue à 100 % par la Confédération suisse) exploitant les chemins de fer suisses. |
Where the eye mixes CAF and CFF
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Visual trap between CAF and CFF
A purely visual mix-up. CAF (\kaf\) and CFF (\se.ɛf.ɛf\) 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 - a in “CAF” becomes f in “CFF”. Our composite confusion score for this pair is 56925, derived from the frequency rank of both members and their visual similarity.
CAF is recorded at frequency rank #10,286, classified as anoun, pronounced \kaf\. CFF is at rank #46,639, tagged as anoun, pronounced \se.ɛf.ɛf\.
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 56925, this pair ranks #118,104 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of CAF vs CFF
Shared letters: cf. Private to "CAF": a. Private to "CFF": -.
"CAF" · 3 letters · shape CVC · "CFF" · 3 letters · shape CCC
Frequently Asked Questions
Is swapping "CAF" for "CFF" ever safe?
In ordinary French text, does "CAF" or "CFF" show up more?
After this comparison
Eye-level mix-up between "CAF" and "CFF" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "CAF" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "CFF" - compare definitions side by side with the headword page. Word entry
- This pair ranks #118,104 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "CAF" and "CFF" also get mixed up with nearby pairs, the highest-scored neighbour is "CCE vs CFF". Nearby pair
Confusion rank #118,104 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.