no vs Not, What's the Difference?

Which to use

“no” is a pronoun and “Not” is a noun - they look or sound alike but fill different roles in a sentence.

#15
“no” frequency rank: #3,924
“Not” frequency rank: 3939
confusion score

Side-by-Side Comparison

Feature	no	Not
Definition	forma enclítica do pronome o quando precedido de forma verbal terminada em som nasal	necessidade

Letter map: no vs Not

Shared letters muted; letters that set no and Not apart highlighted. Shared run: 2.

2 ch

3 ch

Not

Grammar separator: no vs Not

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: no is apronoun and Notanoun. On the page they differ by 1 extra letter(s) - “no” sits inside “Not”. Our composite confusion score for this pair is 3939, derived from the frequency rank of both members and their visual similarity.

no is recorded at frequency rank #15, classified as apron. Not is at rank #3,924, tagged as anoun, pronounced /noːt/.

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 3939, this pair ranks #71,124 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of no vs Not

Shared letters: no. Private to "no": -. Private to "Not": t.

"no" · 2 letters · shape CV · "Not" · 3 letters · shape CVC

Frequently Asked Questions

Can "no" and "Not" be used interchangeably?

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

In ordinary Portuguese text, does "no" or "Not" show up more?

"no" is the more common of the two: it sits at frequency rank #15 in our Portuguese list, against #3,924 for "Not". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Pair "no" vs "Not" is on the table, pick a follow-up below.

Full dictionary entry for "no" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "Not" - compare definitions side by side with the headword page. Word entry
This pair ranks #71,124 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
"no" and "Not" also get mixed up with nearby pairs, the highest-scored neighbour is "noon vs Not". Nearby pair

Confusion rank #71,124 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.