FehlervsfeverWhat's the difference?

Which to use

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

#746
“Fehler” frequency rank
#38,100
“fever” frequency rank
38846
confusion score

Side-by-Side Comparison

Feature Fehler fever
Definition Abweichung von einem optimalen Zustand, Verfahren oder dem Richtigen Fieber

Where the eye mixes Fehler and fever

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. Fehler runs 6 letters (CVCCVC) against fever's 5 (CVCVC) - the length gap alone is often enough to separate them once you know to check it.

6 ch
Fehler
5 ch
fever

Look-alike desk: Fehler vs fever

A purely visual mix-up. Fehler ([ˈfeːlɐ]) and fever ([ˈfiːvə]) 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 1 letter(s) in length. Our composite confusion score for this pair is 38846, derived from the frequency rank of both members and their visual similarity.

Fehler is recorded at frequency rank #746, classified as anoun, pronounced [ˈfeːlɐ]. fever is at rank #38,100, tagged as anoun, pronounced [ˈfiːvə].

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 38846, this pair ranks #1,553,084 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of Fehler vs fever

Shared letters: efr. Private to "Fehler": hl. Private to "fever": v.

"Fehler" · 6 letters · shape CVCCVC  ·  "fever" · 5 letters · shape CVCVC

Known mistypes of this pair

  • Fehler ← efhler · fehelr · fehhler · fehlerr · fehller · fehlre · felher · ffehler
  • fever ← efver · feevr · feverr · fevre · fevver · ffever · fveer

Frequently Asked Questions

Is swapping "Fehler" for "fever" ever safe?
No. They are said differently ([ˈfeːlɐ] versus [ˈfiːvə]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "Fehler" vs "fever" - which ranks higher?
"Fehler" is the more common of the two: it sits at frequency rank #746 in our German list, against #38,100 for "fever". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

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

  • Full dictionary entry for "Fehler" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "fever" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,553,084 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "Fehler" and "fever" also get mixed up with nearby pairs, the highest-scored neighbour is "fever vs fixer". 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 #1,553,084 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