Which to use
“pion” and “prison” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #16,208
- “pion” frequency rank
- #951
- “prison” frequency rank
- 17159
- confusion score
Side-by-Side Comparison
| Feature | pion | prison |
|---|---|---|
| Definition | Pièce du jeu d’échecs placée initialement sur la seconde rangée de l’échiquier dans chaque camp. | Endroit clos où sont enfermées les personnes condamnées à une peine de privation de liberté ou les prévenus en attente de jugement. |
Where the eye mixes pion and prison
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.
Visual trap between pion and prison
A purely visual mix-up. pion (\pjɔ̃\) and prison (\pʁi.zɔ̃\) 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 17159, derived from the frequency rank of both members and their visual similarity.
pion is recorded at frequency rank #16,208, classified as anoun, pronounced \pjɔ̃\. prison is at rank #951, tagged as anoun, pronounced \pʁi.zɔ̃\.
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 17159, this pair ranks #384,501 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of pion vs prison
Shared letters: inop. Private to "pion": -. Private to "prison": rs.
"pion" · 4 letters · shape CVVC · "prison" · 6 letters · shape CCVCVC
Known mistypes of this pair
Frequently Asked Questions
Can "pion" and "prison" be used interchangeably?
Which is more common, "pion" or "prison"?
After this comparison
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "pion" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "prison" - compare definitions side by side with the headword page. Word entry
- This pair ranks #384,501 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "pion" and "prison" also get mixed up with nearby pairs, the highest-scored neighbour is "pio vs pion". 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 #384,501 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.