bei vs bu, What's the Difference?

Which to use

“bei” is a preposition and “bu” is an adjective - they look or sound alike but fill different roles in a sentence.

#23,777
“bei” frequency rank: #5,636
“bu” frequency rank: 29413
confusion score

Side-by-Side Comparison

Feature	bei	bu
Definition	Près de.	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: bei vs bu

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

3 ch

bei

2 ch

Role in the sentence - bei and bu

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: bei is apreposition and buanadjective. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 29413, derived from the frequency rank of both members and their visual similarity.

bei is recorded at frequency rank #23,777, classified as aprep, pronounced \baɪ̯\. 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 29413, this pair ranks #316,832 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of bei vs bu

Shared letters: b. Private to "bei": ei. Private to "bu": u.

"bei" · 3 letters · shape CVV · "bu" · 2 letters · shape CV

Frequently Asked Questions

Can "bei" and "bu" be used interchangeably?

No - they are not even the same part of speech. "bei" is a preposition and "bu" an adjective, so a sentence built for one is usually ungrammatical with the other.

Frequency check: "bei" vs "bu" - which ranks higher?

"bu" is the more common of the two: it sits at frequency rank #5,636 in our French list, against #23,777 for "bei". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Done with this confusable. These links stay specific to "bei" and "bu".

Full dictionary entry for "bei" 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 #316,832 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
"bei" and "bu" also get mixed up with nearby pairs, the highest-scored neighbour is "bei vs ber". Nearby pair

Confusion rank #316,832 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.