Which to use
“Bui” is a name and “buoy” is a noun - they look or sound alike but fill different roles in a sentence.
- #48,638
- “Bui” frequency rank
- #28,856
- “buoy” frequency rank
- 77494
- confusion score
Side-by-Side Comparison
| Feature | Bui | buoy |
|---|---|---|
| Definition | A surname. | A float moored in water to mark a location, warn of danger, indicate a navigational channel or for other purposes |
Letter map: Bui vs buoy
Shared letters muted; letters that set Bui and buoy apart highlighted. Shared run: 2. Bui runs 3 letters (CVV) against buoy's 4 (CVVV) - the length gap alone is often enough to separate them once you know to check it.
Grammar separator: Bui vs buoy
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Bui is aname and buoyanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 77494, derived from the frequency rank of both members and their visual similarity.
Bui is recorded at frequency rank #48,638, classified as aname. buoy is at rank #28,856, tagged as anoun, pronounced /ˈbɔɪ/.
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 77494, this pair ranks #27,104 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of Bui vs buoy
Shared letters: bu. Private to "Bui": i. Private to "buoy": oy.
"Bui" · 3 letters · shape CVV · "buoy" · 4 letters · shape CVVV
Known mistypes of this pair
- buoy ← bbuoy · bouy · buoyy · buyo · uboy
Frequently Asked Questions
Is swapping "Bui" for "buoy" ever safe?
In ordinary English text, does "Bui" or "buoy" show up more?
What to do next
Done with this confusable. These links stay specific to "Bui" and "buoy".
- Full dictionary entry for "Bui" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "buoy" - compare definitions side by side with the headword page. Word entry
- This pair ranks #27,104 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "Bui" and "buoy" also get mixed up with nearby pairs, the highest-scored neighbour is "BFS vs Bui". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #27,104 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.