déformervsdéfoulerTell them apart

Which to use

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

#28,526
“déformer” frequency rank
#25,292
“défouler” frequency rank
53818
confusion score

Side-by-Side Comparison

Feature déformer défouler
Definition Altérer dans sa forme. Donner les moyens de satisfaire son agressivité ou ses tensions.

Where the eye mixes déformer and défouler

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. déformer (CVCVCCVC) and défouler (CVCVVCVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

8 ch
déformer
8 ch
défouler

Why the eye confuses déformer with défouler

A purely visual mix-up. déformer (\de.fɔʁ.me\) and défouler (\de.fu.le\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 53818, derived from the frequency rank of both members and their visual similarity.

déformer is recorded at frequency rank #28,526, classified as averb, pronounced \de.fɔʁ.me\. défouler is at rank #25,292, tagged as averb, pronounced \de.fu.le\.

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 53818, this pair ranks #138,171 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of déformer vs défouler

Shared letters: deforé. Private to "déformer": m. Private to "défouler": lu.

"déformer" · 8 letters · shape CVCVCCVC  ·  "défouler" · 8 letters · shape CVCVVCVC

Frequently Asked Questions

Is swapping "déformer" for "défouler" ever safe?
No. They are said differently (\de.fɔʁ.me\ versus \de.fu.le\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary French text, does "déformer" or "défouler" show up more?
"défouler" is the more common of the two: it sits at frequency rank #25,292 in our French list, against #28,526 for "déformer". 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 "déformer" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "défouler" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #138,171 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "déformer" and "défouler" also get mixed up with nearby pairs, the highest-scored neighbour is "déforment vs déformer". Nearby pair

Confusion rank #138,171 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