Which to use
“kno” is a verb and “knob” is a noun - they look or sound alike but fill different roles in a sentence.
- #48,851
- “kno” frequency rank
- #15,203
- “knob” frequency rank
- 64054
- confusion score
Side-by-Side Comparison
| Feature | kno | knob |
|---|---|---|
| Definition | Informal spelling of know. | A rounded protuberance, especially one arising from a flat surface; a fleshy lump or caruncle. |
Letter map: kno vs knob
Shared letters muted; letters that set kno and knob apart highlighted. Shared run: 3. kno runs 3 letters (CCV) against knob's 4 (CCVC) - the length gap alone is often enough to separate them once you know to check it.
Part-of-speech tell for kno / knob
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: kno is averb and knobanoun. On the page they differ by 1 extra letter(s) - “kno” sits inside “knob”. Our composite confusion score for this pair is 64054, derived from the frequency rank of both members and their visual similarity.
kno is recorded at frequency rank #48,851, classified as averb. knob is at rank #15,203, tagged as anoun, pronounced /nɒb/.
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 64054, this pair ranks #79,703 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of kno vs knob
Shared letters: kno. Private to "kno": -. Private to "knob": b.
"kno" · 3 letters · shape CCV · "knob" · 4 letters · shape CCVC
Known mistypes of this pair
- knob ← kknob · knbo · knnob · knobb · konb · nkob
Frequently Asked Questions
Is swapping "kno" for "knob" ever safe?
In ordinary English text, does "kno" or "knob" show up more?
After this comparison
Done with this confusable. These links stay specific to "kno" and "knob".
- Full dictionary entry for "kno" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "knob" - compare definitions side by side with the headword page. Word entry
- This pair ranks #79,703 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "kno" and "knob" also get mixed up with nearby pairs, the highest-scored neighbour is "kno vs Kop". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #79,703 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.