Which to use
“non” is an adverb and “noon” is a noun - they look or sound alike but fill different roles in a sentence.
- #6,793
- “non” frequency rank
- #49,607
- “noon” frequency rank
- 56400
- confusion score
Side-by-Side Comparison
| Feature | non | noon |
|---|---|---|
| Definition | não | meio-dia |
Letter map: non vs noon
Shared letters muted; letters that set non and noon apart highlighted. Shared run: 3. non runs 3 letters (CVC) against noon's 4 (CVVC) - the length gap alone is often enough to separate them once you know to check it.
Part-of-speech tell for non / noon
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: non is anadverb and noonanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 56400, derived from the frequency rank of both members and their visual similarity.
non is recorded at frequency rank #6,793, classified as anadv. noon is at rank #49,607, tagged as anoun, pronounced /nuːn/.
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 56400, this pair ranks #10,001 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.
Orthographic DNA of non vs noon
Shared letters: no. Private to "non": -. Private to "noon": -.
"non" · 3 letters · shape CVC · "noon" · 4 letters · shape CVVC
Known mistypes of this pair
- noon ← nnoon · noonn · onon
Frequently Asked Questions
Do "non" and "noon" mean the same thing in a sentence?
In ordinary Portuguese text, does "non" or "noon" show up more?
Useful next steps
Pair "non" vs "noon" is on the table, pick a follow-up below.
- Full dictionary entry for "non" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "noon" - compare definitions side by side with the headword page. Word entry
- This pair ranks #10,001 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "non" and "noon" also get mixed up with nearby pairs, the highest-scored neighbour is "noon vs nun". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #10,001 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.