English pronunciation · Words Starting with R

Radon Pronunciation

Radon is pronounced RAY-dahn, IPA /ˈreɪˌdɑn/.

RAY-dahn

US /ˈreɪˌdɑn/  ·  UK /ˈreɪdɒn/

Syllables: RAY · dahn (2 syllables, stress on syllable 1)

noun: A radioactive gas with no smell that seeps out of some rocks and soils.

Audio for the American and British pronunciations plays on this page with JavaScript enabled.

Radon in a Sentence

  • Radon levels are tested before the sale goes through.
  • A fan in the crawl space vents the radon out.
  • Radon is the heaviest of the noble gases.

Common Mispronunciations of Radon

Not RA-duhn

A long ay opens this word, the same way it opens radium and radiation.

Not RAY-dohn

The on at the end is dahn, with the flat vowel of palm rather than the oh of phone.

More words starting with r · Every word in the pronunciation guide