kaufenvsKeulenWhat's the difference?

Quick tell: kaufen is a verb, Keulen is a noun, so they fill different roles in a sentence.

Which to use

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

#635
“kaufen” frequency rank
#45,383
“Keulen” frequency rank
46018
confusion score

Side-by-Side Comparison

Feature kaufen Keulen
Definition Ware gegen Entgelt erwerben Nominativ Plural des Substantivs Keule

Where the eye mixes kaufen and Keulen

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. kaufen and Keulen follow the identical consonant-vowel pattern (CVVCVC). Same shape at a glance is often the real trap, independent of shared letters.

6 ch
kaufen
6 ch
Keulen

Why the eye confuses kaufen with Keulen

These two trip readers on the page rather than in the ear: kaufen is [ˈkaʊ̯fn̩] while Keulen is [ˈkɔɪ̯lən]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 46018, derived from the frequency rank of both members and their visual similarity.

kaufen is recorded at frequency rank #635, classified as averb, pronounced [ˈkaʊ̯fn̩]. Keulen is at rank #45,383, tagged as anoun, pronounced [ˈkɔɪ̯lən].

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 46018, this pair ranks #1,333,318 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of kaufen vs Keulen

Shared letters: eknu. Private to "kaufen": af. Private to "Keulen": l.

"kaufen" · 6 letters · shape CVVCVC  ·  "Keulen" · 6 letters · shape CVVCVC

Known mistypes of this pair

  • kaufenakufen · kafuen · kauefn · kaufenn · kauffen · kaufne · kkaufen · kuafen
  • Keulenekulen · keluen · keueln · keulenn · keullen · keulne · kkeulen · kuelen

Frequently Asked Questions

Is swapping "kaufen" for "Keulen" ever safe?
No - they are not even the same part of speech. "kaufen" is a verb and "Keulen" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "kaufen" or "Keulen" show up more?
"kaufen" is the more common of the two: it sits at frequency rank #635 in our German list, against #45,383 for "Keulen". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Eye-level mix-up between "kaufen" and "Keulen" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "kaufen" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Keulen" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,333,318 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "kaufen" and "Keulen" also get mixed up with nearby pairs, the highest-scored neighbour is "Kehlen vs Keulen". 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 #1,333,318 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