proprevsprospèreTell them apart

Which to use

“propre” and “prospère” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#513
“propre” frequency rank
#13,236
“prospère” frequency rank
13749
confusion score

Side-by-Side Comparison

Feature propre prospère
Definition Qui est particulier à une personne ou à une chose (exclusivement ou non). Qui est dans une période de réussite, de succès.

Where the eye mixes propre and prospère

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. propre runs 6 letters (CCVCCV) against prospère's 8 (CCVCCVCV) - the length gap alone is often enough to separate them once you know to check it.

6 ch
propre
8 ch
prospère

Look-alike desk: propre vs prospère

A purely visual mix-up. propre (\pʁɔpʁ\) and prospère (\pʁɔs.pɛʁ\) 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 2 letter(s) in length. Our composite confusion score for this pair is 13749, derived from the frequency rank of both members and their visual similarity.

propre is recorded at frequency rank #513, classified as anadj, pronounced \pʁɔpʁ\. prospère is at rank #13,236, tagged as anadj, pronounced \pʁɔs.pɛʁ\.

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 13749, this pair ranks #399,709 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of propre vs prospère

Shared letters: eopr. Private to "propre": -. Private to "prospère": sè.

"propre" · 6 letters · shape CCVCCV  ·  "prospère" · 8 letters · shape CCVCCVCV

Known mistypes of this pair

  • propre ← porpre · ppropre · proper · proppre · proprre · prorpe · prpore · prropre

Frequently Asked Questions

Do "propre" and "prospère" mean the same thing in a sentence?
No. They are said differently (\pʁɔpʁ\ versus \pʁɔs.pɛʁ\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "propre" or "prospère"?
"propre" is the more common of the two: it sits at frequency rank #513 in our French list, against #13,236 for "prospère". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Eye-level mix-up between "propre" and "prospère" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "propre" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "prospère" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #399,709 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "propre" and "prospère" also get mixed up with nearby pairs, the highest-scored neighbour is "prospère vs prospèrent". 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 #399,709 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