Which to use
“fiable” is an adjective and “fibre” is a noun - they look or sound alike but fill different roles in a sentence.
- #6,297
- “fiable” frequency rank
- #6,089
- “fibre” frequency rank
- 12386
- confusion score
Side-by-Side Comparison
| Feature | fiable | fibre |
|---|---|---|
| Definition | À qui ou auquel on peut se fier. | Élément anatomique long et frêle, pour animaux ou végétaux. |
Where the eye mixes fiable and fibre
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. fiable runs 6 letters (CVVCCV) against fibre's 5 (CVCCV) - the length gap alone is often enough to separate them once you know to check it.
Visual trap between fiable and fibre
These two trip readers on the page rather than in the ear: fiable is \fjabl\ while fibre is \fibʁ\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 12386, derived from the frequency rank of both members and their visual similarity.
fiable is recorded at frequency rank #6,297, classified as anadj, pronounced \fjabl\. fibre is at rank #6,089, tagged as anoun, pronounced \fibʁ\.
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 12386, this pair ranks #405,463 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of fiable vs fibre
Shared letters: befi. Private to "fiable": al. Private to "fibre": r.
"fiable" · 6 letters · shape CVVCCV · "fibre" · 5 letters · shape CVCCV
Known mistypes of this pair
Frequently Asked Questions
Do "fiable" and "fibre" mean the same thing in a sentence?
In ordinary French text, does "fiable" or "fibre" show up more?
Useful next steps
Eye-level mix-up between "fiable" and "fibre" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "fiable" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "fibre" - compare definitions side by side with the headword page. Word entry
- This pair ranks #405,463 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "fiable" and "fibre" also get mixed up with nearby pairs, the highest-scored neighbour is "fiable vs friable". 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 #405,463 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.