bomvsbonWhat's the difference?

Which to use

“bom” and “bon” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#96
“bom” frequency rank
#10,479
“bon” frequency rank
10575
confusion score

Side-by-Side Comparison

Feature bom bon
Definition que corresponde plenamente ao que é exigido, desejado ou esperado quanto à sua natureza, adequação, função, eficácia, funcionamento etc. (falando de ser ou coisa) bom

Letter map: bom vs bon

Shared letters muted; letters that set bom and bon apart highlighted. Shared run: 2.

3 ch
bom
3 ch
bon

Pair insight - bom / bon

bom and bon are indexed as a confusable Portuguese pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by a single letter - m in “bom” becomes n in “bon”. Our composite confusion score for this pair is 10575, derived from the frequency rank of both members and their visual similarity.

bom is recorded at frequency rank #96, classified as anadj. bon is at rank #10,479, tagged as anadj.

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 10575, this pair ranks #62,478 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of bom vs bon

Shared letters: bo. Private to "bom": m. Private to "bon": n.

"bom" · 3 letters · shape CVC  ·  "bon" · 3 letters · shape CVC

Frequently Asked Questions

Is swapping "bom" for "bon" ever safe?
No. They differ by a single letter - m in “bom” becomes n in “bon”, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Frequency check: "bom" vs "bon" - which ranks higher?
"bom" is the more common of the two: it sits at frequency rank #96 in our Portuguese list, against #10,479 for "bon". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

You've compared "bom" and "bon". Here's where to go from here.

  • Full dictionary entry for "bom" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "bon" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #62,478 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "bom" and "bon" also get mixed up with nearby pairs, the highest-scored neighbour is "bon vs bué". Nearby pair

Confusion rank #62,478 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