Which to use
“nad” is a preposition and “nau” is a noun - they look or sound alike but fill different roles in a sentence.
- #33,954
- “nad” frequency rank
- #17,867
- “nau” frequency rank
- 51821
- confusion score
Side-by-Side Comparison
| Feature | nad | nau |
|---|---|---|
| Definition | em cima, acima de | grande embarcação de guerra ou mercante, de tipo antigo |
Where the eye mixes nad and nau
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. nad (CVC) and nau (CVV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Why the eye confuses nad with nau
These two trip readers on the page rather than in the ear: nad is /ˈnat/ ouvir^(fonte ?) while nau is /ˈnaw/. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - d in “nad” becomes u in “nau”, and the parts of speech differ too (preposition vs noun), which is usually the fastest check. Our composite confusion score for this pair is 51821, derived from the frequency rank of both members and their visual similarity.
nad is recorded at frequency rank #33,954, classified as aprep, pronounced /ˈnat/ ouvir^(fonte ?). nau is at rank #17,867, tagged as anoun, pronounced /ˈnaw/.
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 51821, this pair ranks #13,283 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.
Orthographic DNA of nad vs nau
Shared letters: an. Private to "nad": d. Private to "nau": u.
"nad" · 3 letters · shape CVC · "nau" · 3 letters · shape CVV
Frequently Asked Questions
Do "nad" and "nau" mean the same thing in a sentence?
In ordinary Portuguese text, does "nad" or "nau" show up more?
After this comparison
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "nad" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "nau" - compare definitions side by side with the headword page. Word entry
- This pair ranks #13,283 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "nad" and "nau" also get mixed up with nearby pairs, the highest-scored neighbour is "nad vs nadie". Nearby pair
Confusion rank #13,283 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.