diffèrevsdifformeWhich spelling fits?

Quick tell: diffère is a verb, difforme is an adjective, so they fill different roles in a sentence.

Which to use

“diffère” is a verb and “difforme” is an adjective - they look or sound alike but fill different roles in a sentence.

#12,352
“diffère” frequency rank
#49,022
“difforme” frequency rank
61374
confusion score

Side-by-Side Comparison

Feature diffère difforme
Definition Première personne du singulier du présent de l’indicatif de différer. Qui est contrefait, qui n’a pas la figure, la forme ou les proportions qu’il devrait avoir.

Where the eye mixes diffère and difforme

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence.

7 ch
diffère
8 ch
difforme

Look-alike desk: diffère vs difforme

These two trip readers on the page rather than in the ear: diffère is \di.fɛʁ\ while difforme is \di.fɔʁm\. 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 (verb vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 61374, derived from the frequency rank of both members and their visual similarity.

diffère is recorded at frequency rank #12,352, classified as averb, pronounced \di.fɛʁ\. difforme is at rank #49,022, tagged as anadj, pronounced \di.fɔʁm\.

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 61374, this pair ranks #92,623 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of diffère vs difforme

Shared letters: defir. Private to "diffère": è. Private to "difforme": mo.

"diffère" · 7 letters · shape CVCCVCV  ·  "difforme" · 8 letters · shape CVCCVCCV

Known mistypes of this pair

  • difformeddifforme · dfiforme · diffomre · difforem · difformme · difforrme · diffrome · difofrme

Frequently Asked Questions

Is swapping "diffère" for "difforme" ever safe?
No - they are not even the same part of speech. "diffère" is a verb and "difforme" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "diffère" or "difforme" show up more?
"diffère" is the more common of the two: it sits at frequency rank #12,352 in our French list, against #49,022 for "difforme". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Eye-level mix-up between "diffère" and "difforme" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "diffère" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "difforme" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #92,623 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "diffère" and "difforme" also get mixed up with nearby pairs, the highest-scored neighbour is "différée vs difforme". 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 #92,623 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