Which to use
“Fehler” and “Füller” are a confusable German pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #746
- “Fehler” frequency rank
- #34,108
- “Füller” frequency rank
- 34854
- confusion score
Side-by-Side Comparison
| Feature | Fehler | Füller |
|---|---|---|
| Definition | Abweichung von einem optimalen Zustand, Verfahren oder dem Richtigen | Füllfederhalter, Schreibgerät, das einen Tank für Tinte enthält und somit andauerndes Schreiben ermöglicht |
Where the eye mixes Fehler and Füller
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.
Why the eye confuses Fehler with Füller
A purely visual mix-up. Fehler ([ˈfeːlɐ]) and Füller ([ˈfʏlɐ]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 34854, derived from the frequency rank of both members and their visual similarity.
Fehler is recorded at frequency rank #746, classified as anoun, pronounced [ˈfeːlɐ]. Füller is at rank #34,108, tagged as anoun, pronounced [ˈfʏlɐ].
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 34854, this pair ranks #1,653,769 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of Fehler vs Füller
Shared letters: eflr. Private to "Fehler": h. Private to "Füller": ü.
"Fehler" · 6 letters · shape CVCCVC · "Füller" · 6 letters · shape CVCCVC
Known mistypes of this pair
- Fehler ← efhler · fehelr · fehhler · fehlerr · fehller · fehlre · felher · ffehler
Frequently Asked Questions
Can "Fehler" and "Füller" be used interchangeably?
Which is more common, "Fehler" or "Füller"?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "Fehler" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "Füller" - compare definitions side by side with the headword page. Word entry
- This pair ranks #1,653,769 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
- "Fehler" and "Füller" also get mixed up with nearby pairs, the highest-scored neighbour is "Füller vs Fünfer". 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 #1,653,769 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.