navsnonWhat's the difference?

Quick tell: na is a contraction, non is an adverb, so they fill different roles in a sentence.

Which to use

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

#17
“na” frequency rank
#6,793
“non” frequency rank
6810
confusion score

Side-by-Side Comparison

Feature na non
Definition contração da preposição em com o artigo definido a: não

Where the spellings diverge

Shared letters are muted; the letters that actually set na and non apart are highlighted. They share 1 letter in sequence, which is exactly why the eye skips the difference.

2 ch
na
3 ch
non

Spelling & Dictionary Insight

na and non form a confusable pair in the Portuguese index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They differ by 1 letter(s) in length - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 6810, derived from the frequency rank of both members and their visual similarity.

na is recorded at frequency rank #17, classified as acontraction, pronounced /nɐ/. non is at rank #6,793, 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 6810, this pair ranks #67,517 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Frequency comparison

na#17
non#6,793

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "na" and "non" be used interchangeably?
No, "na" and "non" have distinct meanings and cannot be swapped without changing the meaning of a sentence. Understanding the specific definition and context for each word is essential for correct usage.

Remembering na vs non

The fastest way to pick the right one every time.

  • Check the role first: if you need a contraction, it's “na”; for an adverb, it's “non”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “na” entry
  • Browse more pairs most likely to be confused. Most confusable

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list