Which to use
“radon” is a noun and “redone” is a verb - they look or sound alike but fill different roles in a sentence.
- #33,384
- “radon” frequency rank
- #34,666
- “redone” frequency rank
- 68050
- confusion score
Side-by-Side Comparison
| Feature | radon | redone |
|---|---|---|
| Definition | The chemical element (symbol Rn, formerly Ro) with atomic number 86. It is an odorless, colorless, chemically inert but radioactive noble gas. | past participle of redo |
Where the spellings diverge
Shared letters are muted; the letters that actually set radon and redone apart are highlighted. They share 4 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
These two trip readers on the page rather than in the ear: radon is /ˈɹeɪdɒn/ while redone is /ɹiːˈdʌn/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 68050, derived from the frequency rank of both members and their visual similarity.
radon is recorded at frequency rank #33,384, classified as anoun, pronounced /ˈɹeɪdɒn/. redone is at rank #34,666, tagged as averb, pronounced /ɹiːˈdʌn/.
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 68050, this pair ranks #60,672 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of radon vs redone
Shared letters: dnor. Private to "radon": a. Private to "redone": e.
"radon" · 5 letters · shape CVCVC · "redone" · 6 letters · shape CVCVCV
Known mistypes of this pair
Frequency comparison
Frequently Asked Questions
Can "radon" and "redone" be used interchangeably?
Which is more common, "radon" or "redone"?
Remembering radon vs redone
The fastest way to pick the right one every time.
- Check the role first: if you need a noun, it's “radon”; for a verb, it's “redone”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “radon” entry
- Browse more pairs most likely to be confused. Most confusable