Which to use
“décidée” is an adjective and “dérivée” is a noun - they look or sound alike but fill different roles in a sentence.
- #10,142
- “décidée” frequency rank
- #22,550
- “dérivée” frequency rank
- 32692
- confusion score
Side-by-Side Comparison
| Feature | décidée | dérivée |
|---|---|---|
| Definition | Féminin singulier de décidé. | Limite du taux d’accroissement d’une fonction d'une variable réelle en un point quand l’accroissement de la variable tend vers zéro. |
Where the eye mixes décidée and dérivée
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.
Look-alike desk: décidée vs dérivée
These two trip readers on the page rather than in the ear: décidée is \de.si.de\ while dérivée is \de.ʁi.ve\. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 32692, derived from the frequency rank of both members and their visual similarity.
décidée is recorded at frequency rank #10,142, classified as anadj, pronounced \de.si.de\. dérivée is at rank #22,550, tagged as anoun, pronounced \de.ʁi.ve\.
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 32692, this pair ranks #295,569 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of décidée vs dérivée
Shared letters: deié. Private to "décidée": c. Private to "dérivée": rv.
"décidée" · 7 letters · shape CVCVCVV · "dérivée" · 7 letters · shape CVCVCVV
Frequently Asked Questions
Can "décidée" and "dérivée" be used interchangeably?
Which is more common, "décidée" or "dérivée"?
Useful next steps
Eye-level mix-up between "décidée" and "dérivée" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "décidée" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "dérivée" - compare definitions side by side with the headword page. Word entry
- This pair ranks #295,569 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "décidée" and "dérivée" also get mixed up with nearby pairs, the highest-scored neighbour is "décriée vs dérivée". Nearby pair
Confusion rank #295,569 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.