bahvsbuWhich spelling fits?

Quick tell: bah is a intj, bu is an adjective, so they fill different roles in a sentence.

Which to use

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

#1,107
“bah” frequency rank
#5,636
“bu” frequency rank
6743
confusion score

Side-by-Side Comparison

Feature bah bu
Definition Interjection dénotant le doute ou la négation. 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: bah vs bu

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

3 ch
bah
2 ch
bu

Part-of-speech tell for bah / bu

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: bah is anintj and buanadjective. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 6743, derived from the frequency rank of both members and their visual similarity.

bah is recorded at frequency rank #1,107, classified as anintj, pronounced \baː\. 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 6743, this pair ranks #425,368 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of bah vs bu

Shared letters: b. Private to "bah": ah. Private to "bu": u.

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

Frequently Asked Questions

Do "bah" and "bu" mean the same thing in a sentence?
No - they are not even the same part of speech. "bah" is an intj and "bu" an adjective, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "bah" vs "bu" - which ranks higher?
"bah" is the more common of the two: it sits at frequency rank #1,107 in our French list, against #5,636 for "bu". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pair "bah" vs "bu" is on the table, pick a follow-up below.

  • Full dictionary entry for "bah" 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 #425,368 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "bah" and "bu" also get mixed up with nearby pairs, the highest-scored neighbour is "bu vs bury". Nearby pair

Confusion rank #425,368 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list