Which to use
“cec” is an adjective and “CFF” is a noun - they look or sound alike but fill different roles in a sentence.
- #46,636
- “cec” frequency rank
- #46,639
- “CFF” frequency rank
- 93275
- confusion score
Side-by-Side Comparison
| Feature | cec | CFF |
|---|---|---|
| Definition | Aveugle. | Société anonyme (détenue à 100 % par la Confédération suisse) exploitant les chemins de fer suisses. |
Where the eye mixes cec and CFF
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. cec (CVC) and CFF (CCC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Visual trap between cec and CFF
These two trip readers on the page rather than in the ear: cec is \ˈsek\ while CFF is \se.ɛf.ɛf\. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 93275, derived from the frequency rank of both members and their visual similarity.
cec is recorded at frequency rank #46,636, classified as anadj, pronounced \ˈsek\. 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 93275, this pair ranks #2,390 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of cec vs CFF
Shared letters: c. Private to "cec": e. Private to "CFF": f.
"cec" · 3 letters · shape CVC · "CFF" · 3 letters · shape CCC
Frequently Asked Questions
Is swapping "cec" for "CFF" ever safe?
Which is more common, "cec" or "CFF"?
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 "cec" 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 #2,390 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "cec" and "CFF" also get mixed up with nearby pairs, the highest-scored neighbour is "CCE vs CFF". Nearby pair
Confusion rank #2,390 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.