Which to use
“undertake” is a verb and “undertone” is a noun - they look or sound alike but fill different roles in a sentence.
- #10,787
- “undertake” frequency rank
- #46,240
- “undertone” frequency rank
- 57027
- confusion score
Side-by-Side Comparison
| Feature | undertake | undertone |
|---|---|---|
| Definition | To take upon oneself; to start, to embark on (a specific task etc.). | An auditory tone of low pitch or volume. |
Where the spellings diverge
Shared letters are muted; the letters that actually set undertake and undertone apart are highlighted. They share 7 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: undertake is /ˌʌndəˈteɪk/ while undertone is /ˈʌndə(ɹ)təʊn/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 57027, derived from the frequency rank of both members and their visual similarity.
undertake is recorded at frequency rank #10,787, classified as averb, pronounced /ˌʌndəˈteɪk/. undertone is at rank #46,240, tagged as anoun, pronounced /ˈʌndə(ɹ)təʊn/.
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 57027, this pair ranks #122,073 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of undertake vs undertone
Shared letters: denrtu. Private to "undertake": ak. Private to "undertone": o.
"undertake" · 9 letters · shape VCCVCCVCV · "undertone" · 9 letters · shape VCCVCCVCV
Known mistypes of this pair
Frequency comparison
Frequently Asked Questions
Can "undertake" and "undertone" be used interchangeably?
Which is more common, "undertake" or "undertone"?
Remembering undertake vs undertone
The fastest way to pick the right one every time.
- Check the role first: if you need a verb, it's “undertake”; for a noun, it's “undertone”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “undertake” entry
- Browse more pairs most likely to be confused. Most confusable