radiação

/Rɐ.djɐ.ˈsɐ̃w̃/

//Rɐ.djɐ.ˈsɐ̃w̃// noun

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

The verdict

“radiação” has 9 generated spelling variants in the Portuguese index at frequency #5,138. The variants make it a useful spelling check.

#5,138
frequency rank, Portuguese
963
“R” headwords
9
tracked misspellings
3
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - ato ou efeito de radiar (luz)

Corpus desk

Index PT-radiacao · radiação · Portuguese

radiação · rank #5,138 · 9 variants · 3 confusables

  • FREQ-COMMON #5,138
  • LEN-LONG 8 letters
  • VOW-4 4 vowels
  • CONFUS-LOW 3 pairs
  • VAR-MID 9 variants
  • BOOK-MID 963
  • PHOTO-FINISH racismo

Nearest frequency peer: racismo (-1 rank slots)

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Pares de rank junto ao íman ortográfico “radiação”

Mesma faixa de raridade: útil se um typo cair num lema vizinho

corpus weight

What this shows “radiação” está entre estes pares FrequencyWords; a profundidade de typo mede-se à parte no gráfico de distância de edição.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

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

radiação vs redação
75% similar
radiação vs radical
50% similar
radiação vs radicado
63% similar

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

Key facts for radiação
PropertyValue
Headwordradiação
LanguagePortuguese
Part of speechNoun
IPA/Rɐ.djɐ.ˈsɐ̃w̃/
Letters8
Frequency rank#5,138
Misspellings tracked9
Confusable pairs3
SourceWiktionary (kaikki.org)

Frequência do íman ortográfico “radiação”

Esta escala corre do núcleo do português quotidiano (esquerda) até o rastro de formas raras (direita).radiaçãocai aqui:

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

Os ticks avançam em logaritmo; cada um é da ordem de dez vezes mais raro. Na mesma faixa de raridade aparecem “racismo” (#5,137), “refletir” (#5,140), “queima” (#5,135). Entre 963 lemas com “R”, “radiação” fica em #5,138. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 9 spelling variants around radiação (IPA /Rɐ.djɐ.ˈsɐ̃w̃/), anoun. Corpus frequency is #5,138 among 963 “R” headwords. Wiktionary lists 3 senses, so context still picks the gloss.

Our generated misspelling index lists 9 likely wrong-spelling variants for radiação, with forms such as "ardiação", "radaição", and "raddiação". 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 3 confusable-pair relationships, "redação", "radical", "radicado", a pairing that trips writers up because the two words share enough sound or shape to blur together.

No explicit etymology string is stored for this entry, so spelling patterns must be inferred from the word's phoneme-to-grapheme mapping rather than from a documented borrowing chain. The correct Portuguese form is radiação, spelled R-A-D-I-A-Ç-Ã-O.

Definition

  1. 1
    ato ou efeito de radiar (luz)
  2. 2
    emissão de energia de um campo ondulatório ou por partículas subatômicas
  3. 3
    essa energia emitida

Synonyms

radiânciaemitânciaexitância

This word in other languages

irradiation(English)radiación(Español)irradiation(Français)

Common misspellings

Also misspelled as:

  • ardiação
  • radaição
  • raddiação
  • radiaãço
  • radiaçoã
  • radiçaão
  • raidação
  • rdaiação
  • rradiação

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of radiação - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

ardiação2radaição2raddiação1radiaãço2radiaçoã2radiçaão2raidação2rdaiação2
Edit distance from "radiação"

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 "radiação"?
"radiação" is spelled R-A-D-I-A-Ç-Ã-O. The IPA pronunciation is /Rɐ.djɐ.ˈsɐ̃w̃/.
What does "radiação" mean?
As a noun, "radiação" means: ato ou efeito de radiar (luz)
What words are commonly confused with "radiação"?
"radiação" is commonly confused with "redação", "radical", "radicado". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "radiação"?
The IPA (International Phonetic Alphabet) transcription for "radiação" is /Rɐ.djɐ.ˈsɐ̃w̃/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "radiação" come from?
"radiação" is a Portuguese word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.
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.

Similar Portuguese words by spelling shape

Same letter count and similar misspelling depth for "radiação", not the corpus desk frequency band.

Same letter count

Frequency-ranked Portuguese headwords with 8 letters (nearest by frequency rank).

refletir#5,140sobrinho#5,149oriental#5,125sucedido#5,152

Similar misspelling depth

Headwords with a similar count of attested misspellings (9 here; floor ≥5).

nomeação9 variantsacabado9 variantsJoseph9 variantshaveria9 variants

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

Source: FrequencyWords open word-frequency list