Which to use
“bug” is a noun and “but” is an adverb - they look or sound alike but fill different roles in a sentence.
- #24,762
- “bug” frequency rank
- #11,178
- “but” frequency rank
- 35940
- confusion score
Side-by-Side Comparison
| Feature | bug | but |
|---|---|---|
| Definition | Error, defecto o anomalía en el código de un programa informático. | Muy. |
Where the eye mixes bug and but
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Look-alike desk: bug vs but
These two trip readers on the page rather than in the ear: bug is [ˈbuɣ̞] while but is [ˈbut̪]. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - g in “bug” becomes t in “but”, and the parts of speech differ too (noun vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 35940, derived from the frequency rank of both members and their visual similarity.
bug is recorded at frequency rank #24,762, classified as anoun, pronounced [ˈbuɣ̞]. 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 35940, this pair ranks #183,349 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of bug vs but
Shared letters: bu. Private to "bug": g. Private to "but": t.
"bug" · 3 letters · shape CVC · "but" · 3 letters · shape CVC
Frequently Asked Questions
Do "bug" and "but" mean the same thing in a sentence?
Which is more common, "bug" or "but"?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "bug" 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 #183,349 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "bug" and "but" also get mixed up with nearby pairs, the highest-scored neighbour is "bug vs butt". Nearby pair
Confusion rank #183,349 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.