périssentvspuissentWhat's the difference?

Which to use

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

#43,622
“périssent” frequency rank
#3,033
“puissent” frequency rank
46655
confusion score

Side-by-Side Comparison

Feature périssent puissent
Definition Troisième personne du pluriel de l’indicatif présent de périr. Troisième personne du pluriel du présent du subjonctif de pouvoir.

Where the eye mixes périssent and puissent

Muted = shared; highlighted = the visual trap. They share 7 letters in sequence. périssent runs 9 letters (CVCVCCVCC) against puissent's 8 (CVVCCVCC) - the length gap alone is often enough to separate them once you know to check it.

9 ch
périssent
8 ch
puissent

Look-alike desk: périssent vs puissent

A purely visual mix-up. périssent (\pe.ʁis\) and puissent (\pɥis\) 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 46655, derived from the frequency rank of both members and their visual similarity.

périssent is recorded at frequency rank #43,622, classified as averb, pronounced \pe.ʁis\. puissent is at rank #3,033, tagged as averb, pronounced \pɥis\.

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 46655, this pair ranks #193,226 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of périssent vs puissent

Shared letters: einpst. Private to "périssent": . Private to "puissent": u.

"périssent" · 9 letters · shape CVCVCCVCC  ·  "puissent" · 8 letters · shape CVVCCVCC

Known mistypes of this pair

  • puissentpiussent · ppuissent · puisesnt · puissennt · puissentt · puissetn · puissnet · pusisent

Frequently Asked Questions

Can "périssent" and "puissent" be used interchangeably?
No. They are said differently (\pe.ʁis\ versus \pɥis\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "périssent" vs "puissent" - which ranks higher?
"puissent" is the more common of the two: it sits at frequency rank #3,033 in our French list, against #43,622 for "périssent". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "périssent" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "puissent" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #193,226 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "périssent" and "puissent" also get mixed up with nearby pairs, the highest-scored neighbour is "périrent vs périssent". 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 #193,226 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