kacvskuWhat's the difference?

Quick tell: kac is a noun, ku is a pronoun, so they fill different roles in a sentence.

Which to use

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

#43,278
“kac” frequency rank
#17,061
“ku” frequency rank
60339
confusion score

Side-by-Side Comparison

Feature kac ku
Definition körperliches Unwoholsein nach übermäßigem Alkoholkonsum; Kater, Katzenjammer, Katerstimmung, Hangover, Hang-over wo

Letter map: kac vs ku

Shared letters muted; letters that set kac and ku apart highlighted. Shared run: 1.

3 ch
kac
2 ch
ku

Role in the sentence - kac and ku

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: kac is anoun and kuapronoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 60339, derived from the frequency rank of both members and their visual similarity.

kac is recorded at frequency rank #43,278, classified as anoun, pronounced [kat͡s]. ku is at rank #17,061, tagged as apron, pronounced […].

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 60339, this pair ranks #790,692 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of kac vs ku

Shared letters: k. Private to "kac": ac. Private to "ku": u.

"kac" · 3 letters · shape CVC  ·  "ku" · 2 letters · shape CV

Frequently Asked Questions

Do "kac" and "ku" mean the same thing in a sentence?
No - they are not even the same part of speech. "kac" is a noun and "ku" a pronoun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "kac" vs "ku" - which ranks higher?
"ku" is the more common of the two: it sits at frequency rank #17,061 in our German list, against #43,278 for "kac". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Done with this confusable. These links stay specific to "kac" and "ku".

  • Full dictionary entry for "kac" 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 #790,692 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "kac" and "ku" also get mixed up with nearby pairs, the highest-scored neighbour is "kac vs KGaA". Nearby pair

Confusion rank #790,692 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list