faillevsfolleWhat's the difference?

Which to use

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

#6,087
“faille” frequency rank
#3,074
“folle” frequency rank
9161
confusion score

Side-by-Side Comparison

Feature faille folle
Definition Fracture, fissure avec rejet des deux blocs situés de part et d’autre de la cassure. Filet à larges mailles, tendu lâche.

Where the eye mixes faille and folle

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.

6 ch
faille
5 ch
folle

Look-alike desk: faille vs folle

A purely visual mix-up. faille (\faj\) and folle (\fɔl\) 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 9161, derived from the frequency rank of both members and their visual similarity.

faille is recorded at frequency rank #6,087, classified as anoun, pronounced \faj\. folle is at rank #3,074, tagged as anoun, pronounced \fɔl\.

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 9161, this pair ranks #417,606 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of faille vs folle

Shared letters: efl. Private to "faille": ai. Private to "folle": o.

"faille" · 6 letters · shape CVVCCV  ·  "folle" · 5 letters · shape CVCCV

Known mistypes of this pair

  • failleafille · faile · failel · falile · ffaille · fialle
  • folleffolle · flole · fole · folel · oflle

Frequently Asked Questions

Do "faille" and "folle" mean the same thing in a sentence?
No. They are said differently (\faj\ versus \fɔl\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "faille" vs "folle" - which ranks higher?
"folle" is the more common of the two: it sits at frequency rank #3,074 in our French list, against #6,087 for "faille". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

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 "faille" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "folle" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #417,606 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "faille" and "folle" also get mixed up with nearby pairs, the highest-scored neighbour is "faille vs fill". 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 #417,606 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