na vs noi, What's the Difference?

Which to use

“na” is a contraction and “noi” is a pronoun - they look or sound alike but fill different roles in a sentence.

#17
“na” frequency rank: #36,563
“noi” frequency rank: 36580
confusion score

Side-by-Side Comparison

Feature	na	noi
Definition	contração da preposição em com o artigo definido a:	nós

Letter map: na vs noi

Shared letters muted; letters that set na and noi apart highlighted. Shared run: 1.

2 ch

3 ch

noi

Part-of-speech tell for na / noi

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: na is acontraction and noiapronoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 36580, derived from the frequency rank of both members and their visual similarity.

na is recorded at frequency rank #17, classified as acontraction, pronounced /nɐ/. noi is at rank #36,563, tagged as apron.

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 36580, this pair ranks #30,176 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of na vs noi

Shared letters: n. Private to "na": a. Private to "noi": io.

"na" · 2 letters · shape CV · "noi" · 3 letters · shape CVV

Frequently Asked Questions

Is swapping "na" for "noi" ever safe?

No - they are not even the same part of speech. "na" is a contraction and "noi" a pronoun, so a sentence built for one is usually ungrammatical with the other.

In ordinary Portuguese text, does "na" or "noi" show up more?

"na" is the more common of the two: it sits at frequency rank #17 in our Portuguese list, against #36,563 for "noi". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

You've compared "na" and "noi". Here's where to go from here.

Full dictionary entry for "na" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "noi" - compare definitions side by side with the headword page. Word entry
This pair ranks #30,176 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
"na" and "noi" also get mixed up with nearby pairs, the highest-scored neighbour is "noi vs noon". Nearby pair

Confusion rank #30,176 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.