Which to use
“nocivo” is an adjective and “noiva” is a noun - they look or sound alike but fill different roles in a sentence.
- #31,467
- “nocivo” frequency rank
- #4,328
- “noiva” frequency rank
- 35795
- confusion score
Side-by-Side Comparison
| Feature | nocivo | noiva |
|---|---|---|
| Definition | que causa prejuízo | mulher comprometida em casar-se ou que irá casar-se logo |
Where the eye mixes nocivo and noiva
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. nocivo runs 6 letters (CVCVCV) against noiva's 5 (CVVCV) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses nocivo with noiva
These two trip readers on the page rather than in the ear: nocivo is /nu.ˈsi.vu/ while noiva is /ˈnoj.vɐ/. 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 (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 35795, derived from the frequency rank of both members and their visual similarity.
nocivo is recorded at frequency rank #31,467, classified as anadj, pronounced /nu.ˈsi.vu/. noiva is at rank #4,328, tagged as anoun, pronounced /ˈnoj.vɐ/.
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 35795, this pair ranks #31,178 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of nocivo vs noiva
Shared letters: inov. Private to "nocivo": c. Private to "noiva": a.
"nocivo" · 6 letters · shape CVCVCV · "noiva" · 5 letters · shape CVVCV
Known mistypes of this pair
Frequently Asked Questions
Do "nocivo" and "noiva" mean the same thing in a sentence?
In ordinary Portuguese text, does "nocivo" or "noiva" show up more?
After this comparison
Eye-level mix-up between "nocivo" and "noiva" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "nocivo" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "noiva" - compare definitions side by side with the headword page. Word entry
- This pair ranks #31,178 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "nocivo" and "noiva" also get mixed up with nearby pairs, the highest-scored neighbour is "nociva vs nocivo". 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 #31,178 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.