CFFvsconfTell them apart

Which to use

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

#46,639
“CFF” frequency rank
#18,692
“conf” frequency rank
65331
confusion score

Side-by-Side Comparison

Feature CFF conf
Definition Société anonyme (détenue à 100 % par la Confédération suisse) exploitant les chemins de fer suisses. Conférence.

Where the eye mixes CFF and conf

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

3 ch
CFF
4 ch
conf

Look-alike desk: CFF vs conf

A purely visual mix-up. CFF (\se.ɛf.ɛf\) and conf (\kɔ̃f\) 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 1 letter(s) in length. Our composite confusion score for this pair is 65331, derived from the frequency rank of both members and their visual similarity.

CFF is recorded at frequency rank #46,639, classified as anoun, pronounced \se.ɛf.ɛf\. conf is at rank #18,692, tagged as anoun, pronounced \kɔ̃f\.

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 65331, this pair ranks #72,856 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of CFF vs conf

Shared letters: cf. Private to "CFF": -. Private to "conf": no.

"CFF" · 3 letters · shape CCC  ·  "conf" · 4 letters · shape CVCC

Known mistypes of this pair

  • confcconf · cnof · cofn · conff · connf · ocnf

Frequently Asked Questions

Can "CFF" and "conf" be used interchangeably?
No. They are said differently (\se.ɛf.ɛf\ versus \kɔ̃f\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary French text, does "CFF" or "conf" show up more?
"conf" is the more common of the two: it sits at frequency rank #18,692 in our French list, against #46,639 for "CFF". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Eye-level mix-up between "CFF" and "conf" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "CFF" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "conf" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #72,856 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "CFF" and "conf" also get mixed up with nearby pairs, the highest-scored neighbour is "CCE vs CFF". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #72,856 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