Which to use
“perdurent” and “périrent” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #42,517
- “perdurent” frequency rank
- #48,129
- “périrent” frequency rank
- 90646
- confusion score
Side-by-Side Comparison
| Feature | perdurent | périrent |
|---|---|---|
| Definition | Troisième personne du pluriel du présent de l’indicatif de perdurer. | Troisième personne du pluriel du passé simple de périr. |
Where the eye mixes perdurent and périrent
Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. perdurent runs 9 letters (CVCCVCVCC) against périrent's 8 (CVCVCVCC) - the length gap alone is often enough to separate them once you know to check it.
Visual trap between perdurent and périrent
A purely visual mix-up. perdurent (\pɛʁ.dyʁ\) and périrent (\pe.ʁiʁ\) 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 90646, derived from the frequency rank of both members and their visual similarity.
perdurent is recorded at frequency rank #42,517, classified as averb, pronounced \pɛʁ.dyʁ\. périrent is at rank #48,129, tagged as averb, pronounced \pe.ʁiʁ\.
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 90646, this pair ranks #4,596 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of perdurent vs périrent
Shared letters: enprt. Private to "perdurent": du. Private to "périrent": ié.
"perdurent" · 9 letters · shape CVCCVCVCC · "périrent" · 8 letters · shape CVCVCVCC
Known mistypes of this pair
- perdurent ← eprdurent · pedrurent · perddurent · perdruent · perduernt · perdurennt · perdurentt · perduretn
Frequently Asked Questions
Do "perdurent" and "périrent" mean the same thing in a sentence?
Frequency check: "perdurent" vs "périrent" - which ranks higher?
After this comparison
Eye-level mix-up between "perdurent" and "périrent" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "perdurent" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "périrent" - compare definitions side by side with the headword page. Word entry
- This pair ranks #4,596 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "perdurent" and "périrent" 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 #4,596 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.