Radon

[ˈʁaːdɔn]

/[ˈʁaːdɔn]/ noun

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

The verdict

“Radon” is an uncommon German word, ranked #59,986 in German word frequency and used as a noun.

#59,986
frequency rank, German
5
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - chemisches Element mit der Ordnungszahl 86, das zur Gruppe der Edelgase gehört

Key facts for Radon
PropertyValue
HeadwordRadon
LanguageGerman
Part of speechNoun
IPA[ˈʁaːdɔn]
Letters5
Frequency rank#59,986
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “Radon” sits in German 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). Radon lands here:

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

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

Spelling & Dictionary Insight

The German entry for Radon is 5 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as [ˈʁaːdɔn]. Corpus data places it at rank #59,986 in overall German word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "chemisches Element mit der Ordnungszahl 86, das zur Gruppe der Edelgase gehört".

Radon doesn't appear in our generated misspelling index, a sign its spelling follows regular German conventions. It is not paired with a close-neighbour confusable in our dataset, a sign it's visually distinctive enough not to be mixed up with another word.

This headword's origin isn't recorded in our source data, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct German form is Radon, spelled R-A-D-O-N.

Definition

  1. 1
    chemisches Element mit der Ordnungszahl 86, das zur Gruppe der Edelgase gehört

Synonyms

NitonRadongas

This word in other languages

radon(English)radón(Español)radon(Français)rádon(Português)

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 German corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "Radon"?
"Radon" is spelled R-A-D-O-N. The IPA pronunciation is [ˈʁaːdɔn].
What does "Radon" mean?
As a noun, "Radon" means: chemisches Element mit der Ordnungszahl 86, das zur Gruppe der Edelgase gehört
How do you pronounce "Radon"?
The IPA (International Phonetic Alphabet) transcription for "Radon" is [ˈʁaːdɔn]. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "Radon" come from?
"Radon" is a German 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 “Radon”

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

  • The one correct German spelling is R-A-D-O-N - every other letter order is a misspelling in standard orthography.
  • Say it as [ˈʁaːdɔn] (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more German words and confusable pairs in the same reference. German 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.

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

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