bueirovsburroWhich spelling fits?

Quick tell: bueiro is a noun, burro is an adjective, so they fill different roles in a sentence.

Which to use

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

#40,923
“bueiro” frequency rank
#5,387
“burro” frequency rank
46310
confusion score

Side-by-Side Comparison

Feature bueiro burro
Definition canal ou buraco feito em uma embarcação, em uma parede, etc., para dar esgoto a águas asnático; tolo; estúpido; grosseiro

Where the eye mixes bueiro and burro

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. bueiro runs 6 letters (CVVVCV) against burro's 5 (CVCCV) - the length gap alone is often enough to separate them once you know to check it.

6 ch
bueiro
5 ch
burro

Why the eye confuses bueiro with burro

These two trip readers on the page rather than in the ear: bueiro is /ˈbwɐj.ɾu/ while burro is /ˈbu.χu/. 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 (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 46310, derived from the frequency rank of both members and their visual similarity.

bueiro is recorded at frequency rank #40,923, classified as anoun, pronounced /ˈbwɐj.ɾu/. burro is at rank #5,387, tagged as anadj, pronounced /ˈbu.χu/.

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 46310, this pair ranks #19,026 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of bueiro vs burro

Shared letters: boru. Private to "bueiro": ei. Private to "burro": -.

"bueiro" · 6 letters · shape CVVVCV  ·  "burro" · 5 letters · shape CVCCV

Known mistypes of this pair

  • bueiro ← bbueiro · beuiro · bueior · bueirro · buerio · buiero · ubeiro
  • burro ← bburro · bruro · buro · buror · ubrro

Frequently Asked Questions

Do "bueiro" and "burro" mean the same thing in a sentence?
No - they are not even the same part of speech. "bueiro" is a noun and "burro" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "bueiro" or "burro" show up more?
"burro" is the more common of the two: it sits at frequency rank #5,387 in our Portuguese list, against #40,923 for "bueiro". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Eye-level mix-up between "bueiro" and "burro" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "bueiro" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "burro" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #19,026 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "bueiro" and "burro" also get mixed up with nearby pairs, the highest-scored neighbour is "berro vs bueiro". 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 #19,026 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list