auffahrenvsausfahrenWhich spelling fits?

Which to use

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

#37,969
“auffahren” frequency rank
#40,393
“ausfahren” frequency rank
78362
confusion score

Side-by-Side Comparison

Feature auffahren ausfahren
Definition beim Fahren gegen die Rückseite des vorausfahrenden Fahrzeugs oder gegen ein Hindernis prallen; auf Grund laufen (jemanden) mit einem Fahrzeug, Kinderwagen, Rollstuhl oder Ähnlichem auf einen Ausflug, eine Ausfahrt mitnehmen

Where the eye mixes auffahren and ausfahren

Muted = shared; highlighted = the visual trap. They share 8 letters in sequence. auffahren and ausfahren follow the identical consonant-vowel pattern (VVCCVCCVC). Same shape at a glance is often the real trap, independent of shared letters.

9 ch
auffahren
9 ch
ausfahren

Why the eye confuses auffahren with ausfahren

A purely visual mix-up. auffahren ([ˈaʊ̯fˌfaːʁən]) and ausfahren ([ˈaʊ̯sˌfaːʁən]) 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 a single letter - f in “auffahren” becomes s in “ausfahren”. Our composite confusion score for this pair is 78362, derived from the frequency rank of both members and their visual similarity.

auffahren is recorded at frequency rank #37,969, classified as averb, pronounced [ˈaʊ̯fˌfaːʁən]. ausfahren is at rank #40,393, tagged as averb, pronounced [ˈaʊ̯sˌfaːʁən].

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 78362, this pair ranks #239,998 of 2,006,359 scored German confusable pairs - among the most confusable pairs.

Orthographic DNA of auffahren vs ausfahren

Shared letters: aefhnru. Private to "auffahren": -. Private to "ausfahren": s.

"auffahren" · 9 letters · shape VVCCVCCVC  ·  "ausfahren" · 9 letters · shape VVCCVCCVC

Known mistypes of this pair

  • auffahren ← afufahren · aufafhren · aufahren · auffahern · auffahhren · auffahrenn · auffahrne · auffahrren
  • ausfahren ← asufahren · aufsahren · ausafhren · ausfahern · ausfahhren · ausfahrenn · ausfahrne · ausfahrren

Frequently Asked Questions

Do "auffahren" and "ausfahren" mean the same thing in a sentence?
No. They are said differently ([ˈaʊ̯fˌfaːʁən] versus [ˈaʊ̯sˌfaːʁən]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "auffahren" or "ausfahren"?
"auffahren" is the more common of the two: it sits at frequency rank #37,969 in our German list, against #40,393 for "ausfahren". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "auffahren" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ausfahren" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #239,998 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "auffahren" and "ausfahren" also get mixed up with nearby pairs, the highest-scored neighbour is "ausfahren vs Ausfahrten". 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 #239,998 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