poisonsvsprionsWhich spelling fits?

Which to use

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

#29,912
“poisons” frequency rank
#15,466
“prions” frequency rank
45378
confusion score

Side-by-Side Comparison

Feature poisons prions
Definition Pluriel de poison. Pluriel de prion.

Where the eye mixes poisons and prions

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. poisons runs 7 letters (CVVCVCC) against prions's 6 (CCVVCC) - the length gap alone is often enough to separate them once you know to check it.

7 ch
poisons
6 ch
prions

Look-alike desk: poisons vs prions

A purely visual mix-up. poisons (\pwa.zɔ̃\) and prions (\pʁi.jɔ̃\) 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 45378, derived from the frequency rank of both members and their visual similarity.

poisons is recorded at frequency rank #29,912, classified as anoun, pronounced \pwa.zɔ̃\. prions is at rank #15,466, tagged as anoun, pronounced \pʁi.jɔ̃\.

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 45378, this pair ranks #203,147 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of poisons vs prions

Shared letters: inops. Private to "poisons": -. Private to "prions": r.

"poisons" · 7 letters · shape CVVCVCC  ·  "prions" · 6 letters · shape CCVVCC

Known mistypes of this pair

  • poisonsopisons · piosons · poiosns · poisnos · poisonns · poisonss · posions · ppoisons
  • prionspirons · pprions · prinos · prionns · prionss · proins · prrions · rpions

Frequently Asked Questions

Do "poisons" and "prions" mean the same thing in a sentence?
No. They are said differently (\pwa.zɔ̃\ versus \pʁi.jɔ̃\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "poisons" or "prions"?
"prions" is the more common of the two: it sits at frequency rank #15,466 in our French list, against #29,912 for "poisons". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "poisons" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "prions" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #203,147 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "poisons" and "prions" also get mixed up with nearby pairs, the highest-scored neighbour is "poisons vs potions". 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 #203,147 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