decidervsdécideurWhich spelling fits?

Quick tell: decider is a verb, décideur is a noun, so they fill different roles in a sentence.

Which to use

“decider” is a verb and “décideur” is a noun - they look or sound alike but fill different roles in a sentence.

#41,731
“decider” frequency rank
#44,994
“décideur” frequency rank
86725
confusion score

Side-by-Side Comparison

Feature decider décideur
Definition Décider. Personne qui décide.

Where the eye mixes decider and décideur

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. decider runs 7 letters (CVCVCVC) against décideur's 8 (CVCVCVVC) - the length gap alone is often enough to separate them once you know to check it.

7 ch
decider
8 ch
décideur

Visual trap between decider and décideur

These two trip readers on the page rather than in the ear: decider is \de.t͡si.ˈdɛr\ while décideur is \de.si.dœʁ\. 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 noun), which is usually the fastest check. Our composite confusion score for this pair is 86725, derived from the frequency rank of both members and their visual similarity.

decider is recorded at frequency rank #41,731, classified as averb, pronounced \de.t͡si.ˈdɛr\. décideur is at rank #44,994, tagged as anoun, pronounced \de.si.dœʁ\.

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 86725, this pair ranks #9,258 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of decider vs décideur

Shared letters: cdeir. Private to "decider": -. Private to "décideur": ué.

"decider" · 7 letters · shape CVCVCVC  ·  "décideur" · 8 letters · shape CVCVCVVC

Known mistypes of this pair

  • decider ← dceider · ddecider · deccider · decdier · decidder · deciderr · decidre · deciedr

Frequently Asked Questions

Can "decider" and "décideur" be used interchangeably?
No - they are not even the same part of speech. "decider" is a verb and "décideur" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "decider" or "décideur" show up more?
"decider" is the more common of the two: it sits at frequency rank #41,731 in our French list, against #44,994 for "décideur". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "decider" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "décideur" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #9,258 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "decider" and "décideur" also get mixed up with nearby pairs, the highest-scored neighbour is "décideur vs décodeurs". 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 #9,258 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