Which to use
“coopère” and “coopérer” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #37,748
- “coopère” frequency rank
- #15,602
- “coopérer” frequency rank
- 53350
- confusion score
Side-by-Side Comparison
| Feature | coopère | coopérer |
|---|---|---|
| Definition | Première personne du singulier de l’indicatif présent de coopérer. | Opérer conjointement avec quelqu’un, collaborer. |
Where the eye mixes coopère and coopérer
Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. coopère runs 7 letters (CVVCVCV) against coopérer's 8 (CVVCVCVC) - the length gap alone is often enough to separate them once you know to check it.
Look-alike desk: coopère vs coopérer
A purely visual mix-up. coopère (\kɔ.ɔ.pɛʁ\) and coopérer (\kɔ.ɔ.pe.ʁe\) 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 letter(s) in length. Our composite confusion score for this pair is 53350, derived from the frequency rank of both members and their visual similarity.
coopère is recorded at frequency rank #37,748, classified as averb, pronounced \kɔ.ɔ.pɛʁ\. coopérer is at rank #15,602, tagged as averb, pronounced \kɔ.ɔ.pe.ʁe\.
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 53350, this pair ranks #141,313 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of coopère vs coopérer
Shared letters: ceopr. Private to "coopère": è. Private to "coopérer": é.
"coopère" · 7 letters · shape CVVCVCV · "coopérer" · 8 letters · shape CVVCVCVC
Frequently Asked Questions
Is swapping "coopère" for "coopérer" ever safe?
Frequency check: "coopère" vs "coopérer" - which ranks higher?
Useful next steps
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "coopère" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "coopérer" - compare definitions side by side with the headword page. Word entry
- This pair ranks #141,313 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "coopère" and "coopérer" also get mixed up with nearby pairs, the highest-scored neighbour is "coopère vs coopèrent". Nearby pair
Confusion rank #141,313 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.