Which to use
“P4” and “pb” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #46,332
- “P4” frequency rank
- #15,711
- “pb” frequency rank
- 62043
- confusion score
Side-by-Side Comparison
| Feature | P4 | pb |
|---|---|---|
| Definition | Réformé pour problèmes psychiques. | Problème. |
Where the eye mixes P4 and pb
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Look-alike desk: P4 vs pb
A purely visual mix-up. P4 (\pe.katʁ\) and pb (\pʁɔ.blɛm\) 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 a single letter - 4 in “P4” becomes b in “pb”. Our composite confusion score for this pair is 62043, derived from the frequency rank of both members and their visual similarity.
P4 is recorded at frequency rank #46,332, classified as anoun, pronounced \pe.katʁ\. pb is at rank #15,711, tagged as anoun, pronounced \pʁɔ.blɛm\.
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 62043, this pair ranks #89,147 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of P4 vs pb
Shared letters: p. Private to "P4": -. Private to "pb": b.
"P4" · 1 letters · shape C · "pb" · 2 letters · shape CC
Frequently Asked Questions
Is swapping "P4" for "pb" ever safe?
In ordinary French text, does "P4" or "pb" show up more?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "P4" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "pb" - compare definitions side by side with the headword page. Word entry
- This pair ranks #89,147 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "P4" and "pb" also get mixed up with nearby pairs, the highest-scored neighbour is "P4 vs pio". Nearby pair
Confusion rank #89,147 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.