Which to use
“B1” is a noun and “bu” is an adjective - they look or sound alike but fill different roles in a sentence.
- #21,862
- “B1” frequency rank
- #5,636
- “bu” frequency rank
- 27498
- confusion score
Side-by-Side Comparison
| Feature | B1 | bu |
|---|---|---|
| Definition | Habilitation électrique qualifiant une personne autorisée à effectuer des travaux d’ordre électrique en basse tension selon la norme NF C 18-510. | Absorbé, en parlant d’un liquide ou de sentiment (les sentiments étaient autrefois considérés comme des humeurs, au sens propre de quelque chose d’humide). |
Letter map: B1 vs bu
Shared letters muted; letters that set B1 and bu apart highlighted. Shared run: 1.
Part-of-speech tell for B1 / bu
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: B1 is anoun and buanadjective. On the page they differ by a single letter - 1 in “B1” becomes u in “bu”. Our composite confusion score for this pair is 27498, 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\. bu is at rank #5,636, tagged as anadj.
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 27498, this pair ranks #328,588 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of B1 vs bu
Shared letters: b. Private to "B1": -. Private to "bu": u.
"B1" · 1 letters · shape C · "bu" · 2 letters · shape CV
Frequently Asked Questions
Do "B1" and "bu" mean the same thing in a sentence?
In ordinary French text, does "B1" or "bu" show up more?
After this comparison
You've compared "B1" and "bu". Here's where to go from here.
- Full dictionary entry for "B1" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "bu" - compare definitions side by side with the headword page. Word entry
- This pair ranks #328,588 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "B1" and "bu" also get mixed up with nearby pairs, the highest-scored neighbour is "B1 vs ber". Nearby pair
Confusion rank #328,588 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.