CFFvschefTell them apart

Which to use

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

#46,639
“CFF” frequency rank
#378
“chef” frequency rank
47017
confusion score

Side-by-Side Comparison

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

Where the eye mixes CFF and chef

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

3 ch
CFF
4 ch
chef

Why the eye confuses CFF with chef

A purely visual mix-up. CFF (\se.ɛf.ɛf\) and chef (\ʃɛf\) 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 47017, 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\. chef is at rank #378, tagged as anoun, pronounced \ʃɛf\.

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 47017, this pair ranks #190,286 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of CFF vs chef

Shared letters: cf. Private to "CFF": -. Private to "chef": eh.

"CFF" · 3 letters · shape CCC  ·  "chef" · 4 letters · shape CCVC

Known mistypes of this pair

  • chefcchef · cehf · cheff · chfe · chhef · hcef

Frequently Asked Questions

Do "CFF" and "chef" mean the same thing in a sentence?
No. They are said differently (\se.ɛf.ɛf\ versus \ʃɛf\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "CFF" vs "chef" - which ranks higher?
"chef" is the more common of the two: it sits at frequency rank #378 in our French list, against #46,639 for "CFF". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "CFF" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "chef" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #190,286 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "CFF" and "chef" 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 #190,286 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