diffusévsdiffuseraConfusable pair

Which to use

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

#4,322
“diffusé” frequency rank
#43,880
“diffusera” frequency rank
48202
confusion score

Side-by-Side Comparison

Feature diffusé diffusera
Definition Participe passé masculin singulier de diffuser. Troisième personne du singulier du futur de diffuser.

Where the eye mixes diffusé and diffusera

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

7 ch
diffusé
9 ch
diffusera

Why the eye confuses diffusé with diffusera

A purely visual mix-up. diffusé (\di.fy.ze\) and diffusera (\di.fy.zə.ʁa\) 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 2 letter(s) in length. Our composite confusion score for this pair is 48202, derived from the frequency rank of both members and their visual similarity.

diffusé is recorded at frequency rank #4,322, classified as averb, pronounced \di.fy.ze\. diffusera is at rank #43,880, tagged as averb, pronounced \di.fy.zə.ʁa\.

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 48202, this pair ranks #180,816 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of diffusé vs diffusera

Shared letters: dfisu. Private to "diffusé": é. Private to "diffusera": aer.

"diffusé" · 7 letters · shape CVCCVCV  ·  "diffusera" · 9 letters · shape CVCCVCVCV

Known mistypes of this pair

  • diffuseraddiffusera · dfifusera · diffsuera · diffuesra · diffusear · diffuserra · diffusrea · diffussera

Frequently Asked Questions

Can "diffusé" and "diffusera" be used interchangeably?
No. They are said differently (\di.fy.ze\ versus \di.fy.zə.ʁa\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "diffusé" vs "diffusera" - which ranks higher?
"diffusé" is the more common of the two: it sits at frequency rank #4,322 in our French list, against #43,880 for "diffusera". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "diffusé" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "diffusera" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #180,816 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "diffusé" and "diffusera" also get mixed up with nearby pairs, the highest-scored neighbour is "diffusera vs diffuseurs". 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 #180,816 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