Which to use
“penn” is a verb and “plein” is an adjective - they look or sound alike but fill different roles in a sentence.
- #26,824
- “penn” frequency rank
- #468
- “plein” frequency rank
- 27292
- confusion score
Side-by-Side Comparison
| Feature | penn | plein |
|---|---|---|
| Definition | Deuxième personne du singulier de l’impératif présent de pennen. | Qui contient tout ce qu’il est capable de contenir ; il est opposé à vide. |
Where the eye mixes penn and plein
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Why the eye confuses penn with plein
These two trip readers on the page rather than in the ear: penn is \pɛn\ while plein is \plɛ̃\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (verb vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 27292, derived from the frequency rank of both members and their visual similarity.
penn is recorded at frequency rank #26,824, classified as averb, pronounced \pɛn\. plein is at rank #468, tagged as anadj, pronounced \plɛ̃\.
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 27292, this pair ranks #329,918 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of penn vs plein
Shared letters: enp. Private to "penn": -. Private to "plein": il.
"penn" · 4 letters · shape CVCC · "plein" · 5 letters · shape CCVVC
Known mistypes of this pair
Frequently Asked Questions
Can "penn" and "plein" be used interchangeably?
Frequency check: "penn" vs "plein" - which ranks higher?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "penn" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "plein" - compare definitions side by side with the headword page. Word entry
- This pair ranks #329,918 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "penn" and "plein" also get mixed up with nearby pairs, the highest-scored neighbour is "peep vs penn". 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 #329,918 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.