bufovsbusyWhat's the difference?

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

Which to use

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

#45,221
“bufo” frequency rank
#48,290
“busy” frequency rank
93511
confusion score

Side-by-Side Comparison

Feature bufo busy
Definition sapo ocupado

Where the eye mixes bufo and busy

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

4 ch
bufo
4 ch
busy

Why the eye confuses bufo with busy

These two trip readers on the page rather than in the ear: bufo is /ˈbu.fɔ/ while busy is /ˈbɪzi/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 93511, derived from the frequency rank of both members and their visual similarity.

bufo is recorded at frequency rank #45,221, classified as anoun, pronounced /ˈbu.fɔ/. busy is at rank #48,290, tagged as anadj, pronounced /ˈbɪzi/.

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 93511, this pair ranks #124 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of bufo vs busy

Shared letters: bu. Private to "bufo": fo. Private to "busy": sy.

"bufo" · 4 letters · shape CVCV  ·  "busy" · 4 letters · shape CVCV

Known mistypes of this pair

  • bufobbufo · bfuo · buffo · buof · ubfo
  • busybbusy · bsuy · bussy · busyy · buys · ubsy

Frequently Asked Questions

Can "bufo" and "busy" be used interchangeably?
No - they are not even the same part of speech. "bufo" is a noun and "busy" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "bufo" or "busy"?
"bufo" is the more common of the two: it sits at frequency rank #45,221 in our Portuguese list, against #48,290 for "busy". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "bufo" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "busy" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #124 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "bufo" and "busy" also get mixed up with nearby pairs, the highest-scored neighbour is "bué vs busy". 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 #124 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