KeplervsKeulenTell them apart

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

Which to use

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

#24,014
“Kepler” frequency rank
#45,383
“Keulen” frequency rank
69397
confusion score

Side-by-Side Comparison

Feature Kepler Keulen
Definition deutscher Nachname, Familienname Nominativ Plural des Substantivs Keule

Letter map: Kepler vs Keulen

Shared letters muted; letters that set Kepler and Keulen apart highlighted. Shared run: 4.

6 ch
Kepler
6 ch
Keulen

Grammar separator: Kepler vs Keulen

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Kepler is aname and Keulenanoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 69397, derived from the frequency rank of both members and their visual similarity.

Kepler is recorded at frequency rank #24,014, classified as aname, pronounced […]. 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 69397, this pair ranks #477,881 of 2,006,359 scored German confusable pairs - among the most confusable pairs.

Orthographic DNA of Kepler vs Keulen

Shared letters: ekl. Private to "Kepler": pr. Private to "Keulen": nu.

"Kepler" · 6 letters · shape CVCCVC  ·  "Keulen" · 6 letters · shape CVVCVC

Known mistypes of this pair

  • Keplerekpler · kelper · kepelr · keplerr · kepller · keplre · keppler · kkepler
  • Keulenekulen · keluen · keueln · keulenn · keullen · keulne · kkeulen · kuelen

Frequently Asked Questions

Do "Kepler" and "Keulen" mean the same thing in a sentence?
No - they are not even the same part of speech. "Kepler" is a name and "Keulen" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "Kepler" or "Keulen"?
"Kepler" is the more common of the two: it sits at frequency rank #24,014 in our German list, against #45,383 for "Keulen". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

You've compared "Kepler" and "Keulen". Here's where to go from here.

  • Full dictionary entry for "Kepler" 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 #477,881 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "Kepler" 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 #477,881 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