PillenvsPupillenWhich spelling fits?

Which to use

“Pillen” and “Pupillen” are a confusable German pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#14,147
“Pillen” frequency rank
#39,582
“Pupillen” frequency rank
53729
confusion score

Side-by-Side Comparison

Feature Pillen Pupillen
Definition Nominativ Plural des Substantivs Pille Nominativ Plural des Substantivs Pupille

Where the eye mixes Pillen and Pupillen

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. Pillen runs 6 letters (CVCCVC) against Pupillen's 8 (CVCVCCVC) - the length gap alone is often enough to separate them once you know to check it.

6 ch
Pillen
8 ch
Pupillen

Look-alike desk: Pillen vs Pupillen

A purely visual mix-up. Pillen ([ˈpɪlən]) and Pupillen ([puˈpɪlən]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 2 extra letter(s) - “Pillen” sits inside “Pupillen”. Our composite confusion score for this pair is 53729, derived from the frequency rank of both members and their visual similarity.

Pillen is recorded at frequency rank #14,147, classified as anoun, pronounced [ˈpɪlən]. Pupillen is at rank #39,582, tagged as anoun, pronounced [puˈpɪlən].

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 53729, this pair ranks #1,046,613 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of Pillen vs Pupillen

Shared letters: eilnp. Private to "Pillen": -. Private to "Pupillen": u.

"Pillen" · 6 letters · shape CVCCVC  ·  "Pupillen" · 8 letters · shape CVCVCCVC

Known mistypes of this pair

  • Pillenipllen · pileln · pilen · pillenn · pillne · plilen · ppillen
  • Pupillenppuillen · ppupillen · puipllen · pupileln · pupilen · pupillenn · pupillne · puplilen

Frequently Asked Questions

Is swapping "Pillen" for "Pupillen" ever safe?
No. They are said differently ([ˈpɪlən] versus [puˈpɪlən]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "Pillen" or "Pupillen"?
"Pillen" is the more common of the two: it sits at frequency rank #14,147 in our German list, against #39,582 for "Pupillen". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "Pillen" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Pupillen" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,046,613 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "Pillen" and "Pupillen" also get mixed up with nearby pairs, the highest-scored neighbour is "picken vs Pillen". 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 #1,046,613 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