ossovsouroWhich spelling fits?

Which to use

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

#5,563
“osso” frequency rank
#876
“ouro” frequency rank
6439
confusion score

Side-by-Side Comparison

Feature osso ouro
Definition árduo, difícil; complicado da cor de ouro

Where the eye mixes osso and ouro

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

4 ch
osso
4 ch
ouro

Visual trap between osso and ouro

A purely visual mix-up. osso (/ˈo.su/) and ouro (/ˈow.ɾu/, /ˈo.ɾu/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 6439, derived from the frequency rank of both members and their visual similarity.

osso is recorded at frequency rank #5,563, classified as anadj, pronounced /ˈo.su/. ouro is at rank #876, tagged as anadj, pronounced /ˈow.ɾu/, /ˈo.ɾu/.

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 6439, this pair ranks #67,995 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of osso vs ouro

Shared letters: o. Private to "osso": s. Private to "ouro": ru.

"osso" · 4 letters · shape VCCV  ·  "ouro" · 4 letters · shape VVCV

Known mistypes of this pair

  • ossooso · osos · soso
  • ourooruo · ouor · ourro · uoro

Frequently Asked Questions

Can "osso" and "ouro" be used interchangeably?
No. They are said differently (/ˈo.su/ versus /ˈow.ɾu/, /ˈo.ɾu/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary Portuguese text, does "osso" or "ouro" show up more?
"ouro" is the more common of the two: it sits at frequency rank #876 in our Portuguese list, against #5,563 for "osso". 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 "osso" and "ouro" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "osso" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ouro" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #67,995 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "osso" and "ouro" also get mixed up with nearby pairs, the highest-scored neighbour is "ons vs osso". 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 #67,995 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