additionnevsadditionnerWhich spelling fits?

Which to use

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

#41,103
“additionne” frequency rank
#40,583
“additionner” frequency rank
81686
confusion score

Side-by-Side Comparison

Feature additionne additionner
Definition Première personne du singulier de l’indicatif présent du verbe additionner. Ajouter plusieurs nombres l’un à l’autre pour en trouver le total.

Where the eye mixes additionne and additionner

Muted = shared; highlighted = the visual trap. They share 10 letters in sequence. additionne runs 10 letters (VCCVCVVCCV) against additionner's 11 (VCCVCVVCCVC) - the length gap alone is often enough to separate them once you know to check it.

10 ch
additionne
11 ch
additionner

Visual trap between additionne and additionner

A purely visual mix-up. additionne (\a.di.sjɔn\) and additionner (\a.di.sjɔ.ne\) 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 extra letter(s) - “additionne” sits inside “additionner”. Our composite confusion score for this pair is 81686, derived from the frequency rank of both members and their visual similarity.

additionne is recorded at frequency rank #41,103, classified as averb, pronounced \a.di.sjɔn\. additionner is at rank #40,583, tagged as averb, pronounced \a.di.sjɔ.ne\.

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 81686, this pair ranks #18,236 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of additionne vs additionner

Shared letters: adeinot. Private to "additionne": -. Private to "additionner": r.

"additionne" · 10 letters · shape VCCVCVVCCV  ·  "additionner" · 11 letters · shape VCCVCVVCCVC

Known mistypes of this pair

  • additionneaddiitonne · additinone · additione · additionen · additoinne · addittionne · addtiionne · adidtionne
  • additionneraddiitonner · additinoner · additionenr · additioner · additionnerr · additionnre · additoinner · addittionner

Frequently Asked Questions

Can "additionne" and "additionner" be used interchangeably?
No. They are said differently (\a.di.sjɔn\ versus \a.di.sjɔ.ne\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary French text, does "additionne" or "additionner" show up more?
"additionner" is the more common of the two: it sits at frequency rank #40,583 in our French list, against #41,103 for "additionne". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "additionne" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "additionner" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #18,236 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "additionne" and "additionner" also get mixed up with nearby pairs, the highest-scored neighbour is "additionne vs auditionner". 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 #18,236 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