nocivavsnocivoWhich spelling fits?

Which to use

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

#42,129
“nociva” frequency rank
#31,467
“nocivo” frequency rank
73596
confusion score

Side-by-Side Comparison

Feature nociva nocivo
Definition que causa dano, prejuízo ou malefício; prejudicial que causa prejuízo

Letter map: nociva vs nocivo

Shared letters muted; letters that set nociva and nocivo apart highlighted. Shared run: 5. nociva and nocivo follow the identical consonant-vowel pattern (CVCVCV). Same shape at a glance is often the real trap, independent of shared letters.

6 ch
nociva
6 ch
nocivo

Spelling & dictionary notes on nociva vs nocivo

nociva and nocivo 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 - a in “nociva” becomes o in “nocivo”. Our composite confusion score for this pair is 73596, derived from the frequency rank of both members and their visual similarity.

nociva is recorded at frequency rank #42,129, classified as anadj. nocivo is at rank #31,467, tagged as anadj, pronounced /nu.ˈsi.vu/.

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 73596, this pair ranks #2,736 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of nociva vs nocivo

Shared letters: cinov. Private to "nociva": a. Private to "nocivo": -.

"nociva" · 6 letters · shape CVCVCV  ·  "nocivo" · 6 letters · shape CVCVCV

Known mistypes of this pair

  • nociva ← ncoiva · nnociva · nocciva · nociav · nocivva · nocvia · noicva · onciva
  • nocivo ← ncoivo · nnocivo · noccivo · nociov · nocivvo · nocvio · noicvo · oncivo

Frequently Asked Questions

Can "nociva" and "nocivo" be used interchangeably?
No. They differ by a single letter - a in “nociva” becomes o in “nocivo”, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Frequency check: "nociva" vs "nocivo" - which ranks higher?
"nocivo" is the more common of the two: it sits at frequency rank #31,467 in our Portuguese list, against #42,129 for "nociva". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pair "nociva" vs "nocivo" is on the table, pick a follow-up below.

  • Full dictionary entry for "nociva" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "nocivo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #2,736 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "nociva" and "nocivo" also get mixed up with nearby pairs, the highest-scored neighbour is "nociva vs Noivo". 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 #2,736 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