bis vs bu, What's the Difference?

Which to use

“bis” and “bu” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#7,530
“bis” frequency rank: #5,636
“bu” frequency rank: 13166
confusion score

Side-by-Side Comparison

Feature	bis	bu
Definition	Qui est d’un gris beige foncé #766F64 ou clair #F1E2BE.	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: bis vs bu

Shared letters muted; letters that set bis and bu apart highlighted. Shared run: 1.

3 ch

bis

2 ch

Spelling & dictionary notes on bis vs bu

bis and bu are indexed as a confusable French pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 13166, derived from the frequency rank of both members and their visual similarity.

bis is recorded at frequency rank #7,530, classified as anadj, pronounced \bi\. 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 13166, this pair ranks #402,156 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of bis vs bu

Shared letters: b. Private to "bis": is. Private to "bu": u.

"bis" · 3 letters · shape CVC · "bu" · 2 letters · shape CV

Frequently Asked Questions

Is swapping "bis" for "bu" ever safe?

No. They differ by 1 letter(s) in length, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.

Which is more common, "bis" or "bu"?

"bu" is the more common of the two: it sits at frequency rank #5,636 in our French list, against #7,530 for "bis". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

You've compared "bis" and "bu". Here's where to go from here.

Full dictionary entry for "bis" 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 #402,156 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
"bis" and "bu" also get mixed up with nearby pairs, the highest-scored neighbour is "ber vs bis". Nearby pair

Confusion rank #402,156 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.