diffuséesvsdiffuseraWhich spelling fits?

Which to use

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

#14,246
“diffusées” frequency rank
#43,880
“diffusera” frequency rank
58126
confusion score

Side-by-Side Comparison

Feature diffusées diffusera
Definition Participe passé féminin pluriel de diffuser. Troisième personne du singulier du futur de diffuser.

Where the eye mixes diffusées and diffusera

Muted = shared; highlighted = the visual trap. They share 7 letters in sequence.

9 ch
diffusées
9 ch
diffusera

Visual trap between diffusées and diffusera

A purely visual mix-up. diffusées (\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 share most of their letters but differ in 3 positions. Our composite confusion score for this pair is 58126, derived from the frequency rank of both members and their visual similarity.

diffusées is recorded at frequency rank #14,246, 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 58126, this pair ranks #110,880 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of diffusées vs diffusera

Shared letters: defisu. Private to "diffusées": é. Private to "diffusera": ar.

"diffusées" · 9 letters · shape CVCCVCVVC  ·  "diffusera" · 9 letters · shape CVCCVCVCV

Known mistypes of this pair

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

Frequently Asked Questions

Is swapping "diffusées" for "diffusera" ever safe?
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.
Which is more common, "diffusées" or "diffusera"?
"diffusées" is the more common of the two: it sits at frequency rank #14,246 in our French list, against #43,880 for "diffusera". 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 "diffusées" 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 #110,880 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "diffusées" 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 #110,880 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