Which to use
“kai” is a noun and “Ku” is a name - they look or sound alike but fill different roles in a sentence.
- #10,070
- “kai” frequency rank
- #14,350
- “Ku” frequency rank
- 24420
- confusion score
Side-by-Side Comparison
| Feature | kai | Ku |
|---|---|---|
| Definition | Food. | A surname from Korean. |
Letter map: kai vs Ku
Shared letters muted; letters that set kai and Ku apart highlighted. Shared run: 1.
Role in the sentence - kai and Ku
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: kai is anoun and Kuaname. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 24420, derived from the frequency rank of both members and their visual similarity.
kai is recorded at frequency rank #10,070, classified as anoun, pronounced /kaɪ̯/. Ku is at rank #14,350, tagged as aname.
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 24420, this pair ranks #402,095 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of kai vs Ku
Shared letters: k. Private to "kai": ai. Private to "Ku": u.
"kai" · 3 letters · shape CVV · "Ku" · 2 letters · shape CV
Frequently Asked Questions
Can "kai" and "Ku" be used interchangeably?
Which is more common, "kai" or "Ku"?
After this comparison
You've compared "kai" and "Ku". Here's where to go from here.
- Full dictionary entry for "kai" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "Ku" - compare definitions side by side with the headword page. Word entry
- This pair ranks #402,095 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "kai" and "Ku" also get mixed up with nearby pairs, the highest-scored neighbour is "Kop vs Ku". Nearby pair
Confusion rank #402,095 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.