Which to use
“nox” is a noun and “num” is a particle - they look or sound alike but fill different roles in a sentence.
- #49,823
- “nox” frequency rank
- #27,707
- “num” frequency rank
- 77530
- confusion score
Side-by-Side Comparison
| Feature | nox | num |
|---|---|---|
| Definition | Noche. | Acaso, no es el caso que, no... acaso. |
Where the eye mixes nox and num
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Why the eye confuses nox with num
These two trip readers on the page rather than in the ear: nox is /ˈnoks/ while num is [nũː]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs particle), which is usually the fastest check. Our composite confusion score for this pair is 77530, derived from the frequency rank of both members and their visual similarity.
nox is recorded at frequency rank #49,823, classified as anoun, pronounced /ˈnoks/. num is at rank #27,707, tagged as aparticle, pronounced [nũː].
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 77530, this pair ranks #15,866 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.
Orthographic DNA of nox vs num
Shared letters: n. Private to "nox": ox. Private to "num": mu.
"nox" · 3 letters · shape CVC · "num" · 3 letters · shape CVC
Frequently Asked Questions
Is swapping "nox" for "num" ever safe?
In ordinary Spanish text, does "nox" or "num" show up more?
Useful next steps
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "nox" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "num" - compare definitions side by side with the headword page. Word entry
- This pair ranks #15,866 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "nox" and "num" also get mixed up with nearby pairs, the highest-scored neighbour is "nox vs nui". Nearby pair
Confusion rank #15,866 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.