Which to use
“B1” and “bum” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #21,862
- “B1” frequency rank
- #42,205
- “bum” frequency rank
- 64067
- confusion score
Side-by-Side Comparison
| Feature | B1 | bum |
|---|---|---|
| Definition | Habilitation électrique qualifiant une personne autorisée à effectuer des travaux d’ordre électrique en basse tension selon la norme NF C 18-510. | Personne antisociale aux manières insolentes, qui a un penchant pour l’intimidation et la délinquance. |
Where the eye mixes B1 and bum
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Why the eye confuses B1 with bum
A purely visual mix-up. B1 (\be.œ̃\) and bum (\bɔm\) 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 64067, derived from the frequency rank of both members and their visual similarity.
B1 is recorded at frequency rank #21,862, classified as anoun, pronounced \be.œ̃\. bum is at rank #42,205, tagged as anoun, pronounced \bɔm\.
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 64067, this pair ranks #78,840 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of B1 vs bum
Shared letters: b. Private to "B1": -. Private to "bum": mu.
"B1" · 1 letters · shape C · "bum" · 3 letters · shape CVC
Frequently Asked Questions
Is swapping "B1" for "bum" ever safe?
Which is more common, "B1" or "bum"?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "B1" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "bum" - compare definitions side by side with the headword page. Word entry
- This pair ranks #78,840 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "B1" and "bum" also get mixed up with nearby pairs, the highest-scored neighbour is "bum vs bury". Nearby pair
Confusion rank #78,840 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.