Which to use
“nua” is an adjective and “null” is a num - they look or sound alike but fill different roles in a sentence.
- #7,808
- “nua” frequency rank
- #42,573
- “null” frequency rank
- 50381
- confusion score
Side-by-Side Comparison
| Feature | nua | null |
|---|---|---|
| Definition | feminino de nu | o número zero |
Where the eye mixes nua and null
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses nua with null
These two trip readers on the page rather than in the ear: nua is /ˈnu.ɐ/ while null is /nʊl/ ouvir^(fonte ?). 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 num), which is usually the fastest check. Our composite confusion score for this pair is 50381, derived from the frequency rank of both members and their visual similarity.
nua is recorded at frequency rank #7,808, classified as anadj, pronounced /ˈnu.ɐ/. null is at rank #42,573, tagged as anum, pronounced /nʊl/ ouvir^(fonte ?).
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 50381, this pair ranks #14,589 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.
Orthographic DNA of nua vs null
Shared letters: nu. Private to "nua": a. Private to "null": l.
"nua" · 3 letters · shape CVV · "null" · 4 letters · shape CVCC
Known mistypes of this pair
- null ← nlul · nnull · nul · unll
Frequently Asked Questions
Can "nua" and "null" be used interchangeably?
Which is more common, "nua" or "null"?
After this comparison
Eye-level mix-up between "nua" and "null" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "nua" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "null" - compare definitions side by side with the headword page. Word entry
- This pair ranks #14,589 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "nua" and "null" also get mixed up with nearby pairs, the highest-scored neighbour is "null vs nun". 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 #14,589 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.