Which to use
“bus” is a noun and “but” is an adverb - they look or sound alike but fill different roles in a sentence.
- #4,683
- “bus” frequency rank
- #11,178
- “but” frequency rank
- 15861
- confusion score
Side-by-Side Comparison
| Feature | bus | but |
|---|---|---|
| Definition | Vehículo automotor para pasajeros de gran capacidad y recorrido fijo dentro de una urbe. | Muy. |
Where the eye mixes bus and but
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Visual trap between bus and but
These two trip readers on the page rather than in the ear: bus is [ˈbus] while but is [ˈbut̪]. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - s in “bus” 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 15861, derived from the frequency rank of both members and their visual similarity.
bus is recorded at frequency rank #4,683, classified as anoun, pronounced [ˈbus]. 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 15861, this pair ranks #278,482 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of bus vs but
Shared letters: bu. Private to "bus": s. Private to "but": t.
"bus" · 3 letters · shape CVC · "but" · 3 letters · shape CVC
Frequently Asked Questions
Is swapping "bus" for "but" ever safe?
Which is more common, "bus" 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 "bus" 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 #278,482 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "bus" and "but" also get mixed up with nearby pairs, the highest-scored neighbour is "but vs butt". Nearby pair
Confusion rank #278,482 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.