Which to use
“prospère” is an adjective and “prospérer” is a verb - they look or sound alike but fill different roles in a sentence.
- #13,236
- “prospère” frequency rank
- #21,735
- “prospérer” frequency rank
- 34971
- confusion score
Side-by-Side Comparison
| Feature | prospère | prospérer |
|---|---|---|
| Definition | Qui est dans une période de réussite, de succès. | Être heureux, avoir la fortune favorable. |
Where the eye mixes prospère and prospérer
Muted = shared; highlighted = the visual trap. They share 7 letters in sequence. prospère runs 8 letters (CCVCCVCV) against prospérer's 9 (CCVCCVCVC) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses prospère with prospérer
These two trip readers on the page rather than in the ear: prospère is \pʁɔs.pɛʁ\ while prospérer is \pʁɔs.pe.ʁe\. 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 (adjective vs verb), which is usually the fastest check. Our composite confusion score for this pair is 34971, derived from the frequency rank of both members and their visual similarity.
prospère is recorded at frequency rank #13,236, classified as anadj, pronounced \pʁɔs.pɛʁ\. prospérer is at rank #21,735, tagged as averb, pronounced \pʁɔs.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 34971, this pair ranks #280,087 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of prospère vs prospérer
Shared letters: eoprs. Private to "prospère": è. Private to "prospérer": é.
"prospère" · 8 letters · shape CCVCCVCV · "prospérer" · 9 letters · shape CCVCCVCVC
Frequently Asked Questions
Is swapping "prospère" for "prospérer" ever safe?
Frequency check: "prospère" vs "prospérer" - which ranks higher?
What to do next
Eye-level mix-up between "prospère" and "prospérer" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "prospère" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "prospérer" - compare definitions side by side with the headword page. Word entry
- This pair ranks #280,087 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "prospère" and "prospérer" also get mixed up with nearby pairs, the highest-scored neighbour is "prospèrent vs prospérer". Nearby pair
Confusion rank #280,087 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.