ken vs ku, What's the Difference?

Which to use

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

#6,971
“ken” frequency rank: #22,917
“ku” frequency rank: 29888
confusion score

Side-by-Side Comparison

Feature	ken	ku
Definition	Niquer (au sens sexuel), faire l’amour.	Lettre latine Q, q.

Where the eye mixes ken and ku

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch

ken

2 ch

Look-alike desk: ken vs ku

These two trip readers on the page rather than in the ear: ken is \kɛn\ while ku is \ky\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 29888, derived from the frequency rank of both members and their visual similarity.

ken is recorded at frequency rank #6,971, classified as averb, pronounced \kɛn\. ku is at rank #22,917, tagged as anoun, pronounced \ky\.

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 29888, this pair ranks #313,843 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

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 noun, 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 #6,971 in our French list, against #22,917 for "ku". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

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 #313,843 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
"ken" and "ku" also get mixed up with nearby pairs, the highest-scored neighbour is "ku vs ky". Nearby pair

Confusion rank #313,843 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.