buenvsbusWhat's the difference?

Quick tell: buen is a adjective, bus is a noun, so they fill different roles in a sentence.

Which to use

“buen” is an adjective and “bus” is a noun - they look or sound alike but fill different roles in a sentence.

#241
“buen” frequency rank
#4,683
“bus” frequency rank
4924
confusion score

Side-by-Side Comparison

Feature buen bus
Definition Variante de bueno. Vehículo automotor para pasajeros de gran capacidad y recorrido fijo dentro de una urbe.

Where the eye mixes buen and bus

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
buen
3 ch
bus

Look-alike desk: buen vs bus

These two trip readers on the page rather than in the ear: buen is [ˈbwẽn] while bus is [ˈbus]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 4924, derived from the frequency rank of both members and their visual similarity.

buen is recorded at frequency rank #241, classified as anadj, pronounced [ˈbwẽn]. bus is at rank #4,683, tagged as anoun, pronounced [ˈbus].

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 4924, this pair ranks #314,916 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of buen vs bus

Shared letters: bu. Private to "buen": en. Private to "bus": s.

"buen" · 4 letters · shape CVVC  ·  "bus" · 3 letters · shape CVC

Known mistypes of this pair

  • buenbbuen · beun · buenn · bune · uben · vuen

Frequently Asked Questions

Can "buen" and "bus" be used interchangeably?
No - they are not even the same part of speech. "buen" is an adjective and "bus" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "buen" or "bus"?
"buen" is the more common of the two: it sits at frequency rank #241 in our Spanish list, against #4,683 for "bus". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "buen" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "bus" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #314,916 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "buen" and "bus" also get mixed up with nearby pairs, the highest-scored neighbour is "bus vs butt". 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 #314,916 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list