Which to use
“knob” is a noun and “Knox” is a name - they look or sound alike but fill different roles in a sentence.
- #15,203
- “knob” frequency rank
- #10,386
- “Knox” frequency rank
- 25589
- confusion score
Side-by-Side Comparison
| Feature | knob | Knox |
|---|---|---|
| Definition | A rounded protuberance, especially one arising from a flat surface; a fleshy lump or caruncle. | A Scottish surname from Scottish Gaelic. |
Where the eye mixes knob and Knox
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Spelling & Dictionary Insight
These two trip readers on the page rather than in the ear: knob is /nɒb/ while Knox is /nɑks/. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - b in “knob” becomes x in “Knox”, and the parts of speech differ too (noun vs name), which is usually the fastest check. Our composite confusion score for this pair is 25589, derived from the frequency rank of both members and their visual similarity.
knob is recorded at frequency rank #15,203, classified as anoun, pronounced /nɒb/. Knox is at rank #10,386, tagged as aname, pronounced /nɑks/.
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 25589, this pair ranks #393,123 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of knob vs Knox
Shared letters: kno. Private to "knob": b. Private to "Knox": x.
"knob" · 4 letters · shape CCVC · "Knox" · 4 letters · shape CCVC