núcleo

noun

By · According to Wiktionary data (CC BY-SA) ·

The verdict

“núcleo” has 8 generated spelling variants in the Portuguese index at frequency #3,029. The variants make it a useful spelling check.

#3,029
frequency rank, Portuguese
881
“N” headwords
8
tracked misspellings
2
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - miolo da noz, avelã, amêndoa, pinhão ou de outras frutas

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

núcleo vs nulo
50% similar
núcleo vs nuclear
57% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for núcleo
PropertyValue
Headwordnúcleo
LanguagePortuguese
Part of speechNoun
Letters6
Frequency rank#3,029
Misspellings tracked8
Confusable pairs2
SourceWiktionary (kaikki.org)

Where “núcleo” sits in Portuguese frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). núcleo lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 8 spelling variants around núcleo, anoun. Corpus frequency is #3,029 among 881 “N” headwords. Wiktionary lists 12 senses, so context still picks the gloss.

Our generated misspelling index lists 8 likely wrong-spelling variants for núcleo, with forms such as "ncúleo", "nnúcleo", and "núccleo". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 2 confusable-pair relationships, "nulo", "nuclear", where similar look or sound leads writers to substitute one word for another in context.

No explicit etymology string is stored for this entry, so any spelling logic here comes from how the word's sounds map to letters, not a documented origin story. The correct Portuguese form is núcleo, spelled N-Ú-C-L-E-O.

Definition

  1. 1
    miolo da noz, avelã, amêndoa, pinhão ou de outras frutas
  2. 2
    a melhor parte; o escol
  3. 3
    sede, empório
  4. 4
    elemento que ocupa a posição central de uma estrutura, centro, essência
  5. 5
    o centro de uma galáxia
  6. 6
    corpo (organela) arredondado encontrado no citoplasma das células eucarióticas
  7. 7
    corpo magnético utilizado como condutor para o fluxo magnético de uma bobina
  8. 8
    a região central de um átomo, formado por prótons e neutrons
  9. 9
    a parte central (profunda) do planeta Terra
  10. 10
    elemento do sintagma que determina o caráter nominal, ou verbal, ou adjetival da construção
  11. 11
    anel ou ciclo de um composto aromático; ciclo aromático; anel aromático
  12. 12
    cadeia cíclica; cadeia fechada; cadeia de átomos distribuídos em formato de anel

This word in other languages

nucleus(English)núcleo(Español)noyau(Français)Kern(Deutsch)

Common misspellings

Also misspelled as:

  • ncúleo
  • nnúcleo
  • núccleo
  • núcelo
  • núclleo
  • núcloe
  • núlceo
  • úncleo

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of núcleo - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

ncúleo2nnúcleo1núccleo1núcelo2núclleo1núcloe2núlceo2úncleo2
Edit distance from "núcleo"

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 Portuguese corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "núcleo"?
"núcleo" is spelled N-Ú-C-L-E-O.
What does "núcleo" mean?
As a noun, "núcleo" means: miolo da noz, avelã, amêndoa, pinhão ou de outras frutas
What words are commonly confused with "núcleo"?
"núcleo" is commonly confused with "nulo", "nuclear". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
What language does "núcleo" come from?
"núcleo" is a Portuguese word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Using “núcleo”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct Portuguese spelling is N-Ú-C-L-E-O - every other letter order is a misspelling in standard orthography.
  • Don't mix it up with “nulo” - see the side-by-side comparison. núcleo vs nulo
  • Browse more Portuguese words and confusable pairs in the same reference. Portuguese words

Same frequency band

Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

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

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