radon
/ʀadɔ͂/
The verdict
“radon” is an uncommon Portuguese word, ranked #94,156 in Portuguese word frequency and used as a noun.
- #94,156
- frequency rank, Portuguese
- 5
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - radão/radônio
| Property | Value |
|---|---|
| Headword | radon |
| Language | Portuguese |
| Part of speech | Noun |
| IPA | /ʀadɔ͂/ |
| Letters | 5 |
| Frequency rank | #94,156 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “radon” sits in Portuguese frequency
Spelling & Dictionary Insight
The Portuguese entry for radon is 5 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ʀadɔ͂/. Corpus data places it at rank #94,156 in overall Portuguese word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "radão/radônio".
The misspelling generator found no plausible variants for radon, typically a sign the spelling maps closely to how the word sounds. Our dataset records no confusable match here, a sign it's visually distinctive enough not to be mixed up with another word.
This entry carries no recorded etymology, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct Portuguese form is radon, spelled R-A-D-O-N.
Definition
- 1radão/radônio
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
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Using “radon”
The practical upshot for anyone who landed here from a spell-check.
- The one correct Portuguese spelling is R-A-D-O-N - every other letter order is a misspelling in standard orthography.
- Say it as /ʀadɔ͂/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Browse more Portuguese words and confusable pairs in the same reference. Portuguese words
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.