Which to use
“bu” is an intj and “but” is an adverb - they look or sound alike but fill different roles in a sentence.
- #16,776
- “bu” frequency rank
- #11,178
- “but” frequency rank
- 27954
- confusion score
Side-by-Side Comparison
| Feature | bu | but |
|---|---|---|
| Definition | Se usa para asustar a alguien. | Muy. |
Where the eye mixes bu and but
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Look-alike desk: bu vs but
These two trip readers on the page rather than in the ear: bu is [ˈbu] while but is [ˈbut̪]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 extra letter(s) - “bu” sits inside “but”, and the parts of speech differ too (intj vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 27954, derived from the frequency rank of both members and their visual similarity.
bu is recorded at frequency rank #16,776, classified as anintj, pronounced [ˈbu]. but is at rank #11,178, tagged as anadv, pronounced [ˈbut̪].
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 27954, this pair ranks #224,364 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of bu vs but
Shared letters: bu. Private to "bu": -. Private to "but": t.
"bu" · 2 letters · shape CV · "but" · 3 letters · shape CVC
Frequently Asked Questions
Is swapping "bu" for "but" ever safe?
Which is more common, "bu" or "but"?
What to do next
Eye-level mix-up between "bu" and "but" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "bu" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "but" - compare definitions side by side with the headword page. Word entry
- This pair ranks #224,364 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "bu" and "but" also get mixed up with nearby pairs, the highest-scored neighbour is "bu vs butt". Nearby pair
Confusion rank #224,364 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.