decidervsdécodeurConfusable pair

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

Which to use

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

#41,731
“decider” frequency rank
#33,231
“décodeur” frequency rank
74962
confusion score

Side-by-Side Comparison

Feature decider décodeur
Definition Décider. Dispositif effectuant un décodage.

Where the eye mixes decider and décodeur

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.

7 ch
decider
8 ch
décodeur

Why the eye confuses decider with décodeur

These two trip readers on the page rather than in the ear: decider is \de.t͡si.ˈdɛr\ while décodeur is \de.kɔ.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 74962, 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\. décodeur is at rank #33,231, tagged as anoun, pronounced \de.kɔ.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 74962, this pair ranks #35,508 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of decider vs décodeur

Shared letters: cder. Private to "decider": i. Private to "décodeur": oué.

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

Known mistypes of this pair

  • deciderdceider · ddecider · deccider · decdier · decidder · deciderr · decidre · deciedr

Frequently Asked Questions

Can "decider" and "décodeur" be used interchangeably?
No - they are not even the same part of speech. "decider" is a verb and "décodeur" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "decider" or "décodeur" show up more?
"décodeur" is the more common of the two: it sits at frequency rank #33,231 in our French list, against #41,731 for "decider". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "decider" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "décodeur" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #35,508 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "decider" and "décodeur" also get mixed up with nearby pairs, the highest-scored neighbour is "decider vs délier". 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 #35,508 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