nau vs nn, What's the Difference?

Which to use

“nau” is a noun and “nn” is an adverb - they look or sound alike but fill different roles in a sentence.

#17,867
“nau” frequency rank: #37,935
“nn” frequency rank: 55802
confusion score

Side-by-Side Comparison

Feature	nau	nn
Definition	grande embarcação de guerra ou mercante, de tipo antigo	não

Letter map: nau vs nn

Shared letters muted; letters that set nau and nn apart highlighted. Shared run: 1. nau runs 3 letters (CVV) against nn's 2 (CC) - the length gap alone is often enough to separate them once you know to check it.

3 ch

nau

2 ch

Role in the sentence - nau and nn

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: nau is anoun and nnanadverb. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 55802, derived from the frequency rank of both members and their visual similarity.

nau is recorded at frequency rank #17,867, classified as anoun, pronounced /ˈnaw/. nn is at rank #37,935, tagged as anadv.

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 55802, this pair ranks #10,367 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of nau vs nn

Shared letters: n. Private to "nau": au. Private to "nn": -.

"nau" · 3 letters · shape CVV · "nn" · 2 letters · shape CC

Frequently Asked Questions

Do "nau" and "nn" mean the same thing in a sentence?

No - they are not even the same part of speech. "nau" is a noun and "nn" an adverb, so a sentence built for one is usually ungrammatical with the other.

Frequency check: "nau" vs "nn" - which ranks higher?

"nau" is the more common of the two: it sits at frequency rank #17,867 in our Portuguese list, against #37,935 for "nn". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pair "nau" vs "nn" is on the table, pick a follow-up below.

Full dictionary entry for "nau" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "nn" - compare definitions side by side with the headword page. Word entry
This pair ranks #10,367 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
"nau" and "nn" also get mixed up with nearby pairs, the highest-scored neighbour is "nn vs noon". Nearby pair

Confusion rank #10,367 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.