bitvsBuiWhat's the difference?

Quick tell: bit is a noun, Bui is a name, so they fill different roles in a sentence.

Which to use

“bit” is a noun and “Bui” is a name - they look or sound alike but fill different roles in a sentence.

#419
“bit” frequency rank
#48,638
“Bui” frequency rank
49057
confusion score

Side-by-Side Comparison

Feature bit Bui
Definition A piece of metal placed in a horse's mouth and connected to the reins to direct the animal. A surname.

Letter map: bit vs Bui

Shared letters muted; letters that set bit and Bui apart highlighted. Shared run: 2.

3 ch
bit
3 ch
Bui

Grammar separator: bit vs Bui

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: bit is anoun and Buianame. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 49057, derived from the frequency rank of both members and their visual similarity.

bit is recorded at frequency rank #419, classified as anoun, pronounced /ˈbɪt/. Bui is at rank #48,638, tagged as aname.

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 49057, this pair ranks #187,258 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of bit vs Bui

Shared letters: bi. Private to "bit": t. Private to "Bui": u.

"bit" · 3 letters · shape CVC  ·  "Bui" · 3 letters · shape CVV

Frequently Asked Questions

Is swapping "bit" for "Bui" ever safe?
No - they are not even the same part of speech. "bit" is a noun and "Bui" a name, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "bit" or "Bui" show up more?
"bit" is the more common of the two: it sits at frequency rank #419 in our English list, against #48,638 for "Bui". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Pair "bit" vs "Bui" is on the table, pick a follow-up below.

  • Full dictionary entry for "bit" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Bui" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #187,258 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "bit" and "Bui" also get mixed up with nearby pairs, the highest-scored neighbour is "BFS vs Bui". Nearby pair

Confusion rank #187,258 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list