Which to use
“non” is an adverb and “nono” is an adjective - they look or sound alike but fill different roles in a sentence.
- #6,793
- “non” frequency rank
- #14,415
- “nono” frequency rank
- 21208
- confusion score
Side-by-Side Comparison
| Feature | non | nono |
|---|---|---|
| Definition | não | refere-se àquele que ocupa a posição nove em uma série; o que vem depois do oitavo |
Letter map: non vs nono
Shared letters muted; letters that set non and nono apart highlighted. Shared run: 3.
Grammar separator: non vs nono
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: non is anadverb and nonoanadjective. On the page they differ by 1 extra letter(s) - “non” sits inside “nono”. Our composite confusion score for this pair is 21208, derived from the frequency rank of both members and their visual similarity.
non is recorded at frequency rank #6,793, classified as anadv. nono is at rank #14,415, tagged as anadj, pronounced /ˈno.nu/.
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 21208, this pair ranks #49,126 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of non vs nono
Shared letters: no. Private to "non": -. Private to "nono": -.
"non" · 3 letters · shape CVC · "nono" · 4 letters · shape CVCV
Known mistypes of this pair
- nono ← nnono · nnoo · nonno · onno
Frequently Asked Questions
Can "non" and "nono" be used interchangeably?
Which is more common, "non" or "nono"?
After this comparison
You've compared "non" and "nono". Here's where to go from here.
- Full dictionary entry for "non" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "nono" - compare definitions side by side with the headword page. Word entry
- This pair ranks #49,126 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "non" and "nono" also get mixed up with nearby pairs, the highest-scored neighbour is "nono vs noon". 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 #49,126 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.