Which to use
“ótimo” is an adjective and “óxido” is a noun - they look or sound alike but fill different roles in a sentence.
- #1,417
- “ótimo” frequency rank
- #22,506
- “óxido” frequency rank
- 23923
- confusion score
Side-by-Side Comparison
| Feature | ótimo | óxido |
|---|---|---|
| Definition | que é muito bom | designação genérica dos compostos químicos binários formados por átomos de oxigênio e outros elementos, onde o oxigênio é mais eletronegativo |
Where the eye mixes ótimo and óxido
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Why the eye confuses ótimo with óxido
These two trip readers on the page rather than in the ear: ótimo is /ˈɒ.t͡ʃɪ.mʊ/ while óxido is /ˈɔ.ksi.du/. 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 (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 23923, derived from the frequency rank of both members and their visual similarity.
ótimo is recorded at frequency rank #1,417, classified as anadj, pronounced /ˈɒ.t͡ʃɪ.mʊ/. óxido is at rank #22,506, tagged as anoun, pronounced /ˈɔ.ksi.du/.
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 23923, this pair ranks #45,816 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of ótimo vs óxido
Shared letters: ioó. Private to "ótimo": mt. Private to "óxido": dx.
"ótimo" · 5 letters · shape VCVCV · "óxido" · 5 letters · shape VCVCV
Frequently Asked Questions
Do "ótimo" and "óxido" mean the same thing in a sentence?
In ordinary Portuguese text, does "ótimo" or "óxido" show up more?
After this comparison
Eye-level mix-up between "ótimo" and "óxido" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "ótimo" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "óxido" - compare definitions side by side with the headword page. Word entry
- This pair ranks #45,816 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "ótimo" and "óxido" also get mixed up with nearby pairs, the highest-scored neighbour is "ócio vs óxido". Nearby pair
Confusion rank #45,816 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.