Which to use
“fibre” and “filtre” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #6,089
- “fibre” frequency rank
- #6,298
- “filtre” frequency rank
- 12387
- confusion score
Side-by-Side Comparison
| Feature | fibre | filtre |
|---|---|---|
| Definition | Élément anatomique long et frêle, pour animaux ou végétaux. | Corps poreux (feutre, papier, charbon, etc.) au travers duquel on fait passer une substance liquide, gazeuse ou corpusculaire (la lumière, le courant électrique), pour la clarifier, l’épurer ou en séparer certains éléments. |
Where the eye mixes fibre and filtre
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. fibre runs 5 letters (CVCCV) against filtre's 6 (CVCCCV) - the length gap alone is often enough to separate them once you know to check it.
Look-alike desk: fibre vs filtre
A purely visual mix-up. fibre (\fibʁ\) and filtre (\filtʁ\) 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 12387, derived from the frequency rank of both members and their visual similarity.
fibre is recorded at frequency rank #6,089, classified as anoun, pronounced \fibʁ\. filtre is at rank #6,298, tagged as anoun, pronounced \filtʁ\.
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 12387, this pair ranks #405,457 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of fibre vs filtre
Shared letters: efir. Private to "fibre": b. Private to "filtre": lt.
"fibre" · 5 letters · shape CVCCV · "filtre" · 6 letters · shape CVCCCV
Known mistypes of this pair
Frequently Asked Questions
Can "fibre" and "filtre" be used interchangeably?
In ordinary French text, does "fibre" or "filtre" show up more?
What to do next
Eye-level mix-up between "fibre" and "filtre" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "fibre" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "filtre" - compare definitions side by side with the headword page. Word entry
- This pair ranks #405,457 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "fibre" and "filtre" also get mixed up with nearby pairs, the highest-scored neighbour is "filtre vs fiotte". 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 #405,457 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.