ken vs Ku, What's the Difference?

Which to use

“ken” is a verb and “Ku” is a name - they look or sound alike but fill different roles in a sentence.

#5,057
“ken” frequency rank: #14,350
“Ku” frequency rank: 19407
confusion score

Side-by-Side Comparison

Feature	ken	Ku
Definition	To give birth, conceive, beget, be born; to develop (as a fetus); to nourish, sustain (as life).	A surname from Korean.

Letter map: ken vs Ku

Shared letters muted; letters that set ken and Ku apart highlighted. Shared run: 1.

3 ch

ken

2 ch

Grammar separator: ken vs Ku

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ken is averb and Kuaname. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 19407, derived from the frequency rank of both members and their visual similarity.

ken is recorded at frequency rank #5,057, classified as averb, pronounced /kɛn/. 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 19407, this pair ranks #438,389 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of ken vs Ku

Shared letters: k. Private to "ken": en. Private to "Ku": u.

"ken" · 3 letters · shape CVC · "Ku" · 2 letters · shape CV

Frequently Asked Questions

Is swapping "ken" for "Ku" ever safe?

No - they are not even the same part of speech. "ken" is a verb and "Ku" a name, so a sentence built for one is usually ungrammatical with the other.

Frequency check: "ken" vs "Ku" - which ranks higher?

"ken" is the more common of the two: it sits at frequency rank #5,057 in our English list, against #14,350 for "Ku". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pair "ken" vs "Ku" is on the table, pick a follow-up below.

Full dictionary entry for "ken" 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 #438,389 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
"ken" and "Ku" also get mixed up with nearby pairs, the highest-scored neighbour is "Kop vs Ku". Nearby pair

Confusion rank #438,389 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.