Which to use
“núcleo” and “núcleos” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #4,732
- “núcleo” frequency rank
- #11,094
- “núcleos” frequency rank
- 15826
- confusion score
Side-by-Side Comparison
| Feature | núcleo | núcleos |
|---|---|---|
| Definition | Lo que está en el medio de algo, parte central o medular. | Forma del plural de núcleo. |
Where the eye mixes núcleo and núcleos
Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. núcleo runs 6 letters (CVCCVV) against núcleos's 7 (CVCCVVC) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses núcleo with núcleos
A purely visual mix-up. núcleo ([ˈnukleo]) and núcleos ([ˈnukleos]) 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 1 extra letter(s) - “núcleo” sits inside “núcleos”. Our composite confusion score for this pair is 15826, derived from the frequency rank of both members and their visual similarity.
núcleo is recorded at frequency rank #4,732, classified as anoun, pronounced [ˈnukleo]. núcleos is at rank #11,094, tagged as anoun, pronounced [ˈnukleos].
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 15826, this pair ranks #278,632 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of núcleo vs núcleos
Shared letters: celnoú. Private to "núcleo": -. Private to "núcleos": s.
"núcleo" · 6 letters · shape CVCCVV · "núcleos" · 7 letters · shape CVCCVVC
Frequently Asked Questions
Do "núcleo" and "núcleos" mean the same thing in a sentence?
Which is more common, "núcleo" or "núcleos"?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "núcleo" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "núcleos" - compare definitions side by side with the headword page. Word entry
- This pair ranks #278,632 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "núcleo" and "núcleos" also get mixed up with nearby pairs, the highest-scored neighbour is "núcleos vs nulos". Nearby pair
Confusion rank #278,632 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.