dérivéevsdériverWhich spelling fits?

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

Which to use

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

#22,550
“dérivée” frequency rank
#25,632
“dériver” frequency rank
48182
confusion score

Side-by-Side Comparison

Feature dérivée dériver
Definition Limite du taux d’accroissement d’une fonction d'une variable réelle en un point quand l’accroissement de la variable tend vers zéro. Détourner un cours d’eau.

Same sound, different letters: dérivée vs dériver

Muted letters are shared; highlighted letters are the only spelling cue when pronunciation matches. Shared run: 6 letters. dérivée (CVCVCVV) and dériver (CVCVCVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

7 ch
dérivée
7 ch
dériver

Ear matches; page differs - dérivée and dériver

Say them out loud and nothing separates them: dérivée and dériver carry the same recorded pronunciation, \de.ʁi.ve\. Grammar is what tells them apart: one is anoun, the other averb, so most sentences will only accept one of them. They share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 48182, derived from the frequency rank of both members and their visual similarity.

dérivée is recorded at frequency rank #22,550, classified as anoun, pronounced \de.ʁi.ve\. dériver is at rank #25,632, tagged as averb, 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 48182, this pair ranks #180,964 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of dérivée vs dériver

Shared letters: deirvé. Private to "dérivée": -. Private to "dériver": -.

"dérivée" · 7 letters · shape CVCVCVV  ·  "dériver" · 7 letters · shape CVCVCVC

Frequently Asked Questions

Can "dérivée" and "dériver" be used interchangeably?
No - they are not even the same part of speech. "dérivée" is a noun and "dériver" a verb, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "dérivée" or "dériver" show up more?
"dérivée" is the more common of the two: it sits at frequency rank #22,550 in our French list, against #25,632 for "dériver". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

You've separated the homophone pair "dérivée" / "dériver". Follow the links when you need the full entry or a neighbour that trips the same ear.

  • Full dictionary entry for "dérivée" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "dériver" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #180,964 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "dérivée" and "dériver" also get mixed up with nearby pairs, the highest-scored neighbour is "délier vs dériver". Nearby pair

Confusion rank #180,964 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