non vs nox, What's the Difference?

Which to use

“non” and “nox” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#9,501
“non” frequency rank: #49,823
“nox” frequency rank: 59324
confusion score

Side-by-Side Comparison

Feature	non	nox
Definition	Dícese del número no divisible por dos.	Noche.

Where the eye mixes non and nox

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

3 ch

non

3 ch

nox

Look-alike desk: non vs nox

A purely visual mix-up. non ([ˈnõn]) and nox (/ˈnoks/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by a single letter - n in “non” becomes x in “nox”. Our composite confusion score for this pair is 59324, derived from the frequency rank of both members and their visual similarity.

non is recorded at frequency rank #9,501, classified as anoun, pronounced [ˈnõn]. nox is at rank #49,823, tagged as anoun, pronounced /ˈnoks/.

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 59324, this pair ranks #63,043 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of non vs nox

Shared letters: no. Private to "non": -. Private to "nox": x.

"non" · 3 letters · shape CVC · "nox" · 3 letters · shape CVC

Frequently Asked Questions

Can "non" and "nox" be used interchangeably?

No. They are said differently ([ˈnõn] versus /ˈnoks/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.

Which is more common, "non" or "nox"?

"non" is the more common of the two: it sits at frequency rank #9,501 in our Spanish list, against #49,823 for "nox". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Eye-level mix-up between "non" and "nox" is sorted above. Next: full entries or other pairs that share a letter shape.

Full dictionary entry for "non" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "nox" - compare definitions side by side with the headword page. Word entry
This pair ranks #63,043 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
"non" and "nox" also get mixed up with nearby pairs, the highest-scored neighbour is "nox vs nui". Nearby pair

Confusion rank #63,043 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.