Which to use
“prolongent” and “prolonger” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #33,842
- “prolongent” frequency rank
- #8,016
- “prolonger” frequency rank
- 41858
- confusion score
Side-by-Side Comparison
| Feature | prolongent | prolonger |
|---|---|---|
| Definition | Troisième personne du pluriel du présent de l’indicatif de prolonger. | Faire durer plus longtemps. |
Where the eye mixes prolongent and prolonger
Muted = shared; highlighted = the visual trap. They share 8 letters in sequence. prolongent runs 10 letters (CCVCVCCVCC) against prolonger's 9 (CCVCVCCVC) - the length gap alone is often enough to separate them once you know to check it.
Look-alike desk: prolongent vs prolonger
A purely visual mix-up. prolongent (\pʁɔ.lɔ̃ʒ\) and prolonger (\pʁɔ.lɔ̃.ʒe\) 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 41858, derived from the frequency rank of both members and their visual similarity.
prolongent is recorded at frequency rank #33,842, classified as averb, pronounced \pʁɔ.lɔ̃ʒ\. prolonger is at rank #8,016, tagged as averb, pronounced \pʁɔ.lɔ̃.ʒe\.
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 41858, this pair ranks #229,982 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of prolongent vs prolonger
Shared letters: eglnopr. Private to "prolongent": t. Private to "prolonger": -.
"prolongent" · 10 letters · shape CCVCVCCVCC · "prolonger" · 9 letters · shape CCVCVCCVC
Known mistypes of this pair
- prolongent ← porlongent · pprolongent · prloongent · prollongent · prolnogent · prolognent · prolonegnt · prolongennt
- prolonger ← porlonger · pprolonger · prloonger · prollonger · prolnoger · prologner · prolonegr · prolongerr
Frequently Asked Questions
Can "prolongent" and "prolonger" be used interchangeably?
Frequency check: "prolongent" vs "prolonger" - which ranks higher?
After this comparison
Eye-level mix-up between "prolongent" and "prolonger" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "prolongent" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "prolonger" - compare definitions side by side with the headword page. Word entry
- This pair ranks #229,982 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "prolongent" and "prolonger" also get mixed up with nearby pairs, the highest-scored neighbour is "prolongent vs prolongera". 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 #229,982 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.