faulenvsfaulerWhich spelling fits?

Quick tell: faulen is a verb, fauler is an adjective, so they fill different roles in a sentence.

Which to use

“faulen” is a verb and “fauler” is an adjective - they look or sound alike but fill different roles in a sentence.

#17,886
“faulen” frequency rank
#30,043
“fauler” frequency rank
47929
confusion score

Side-by-Side Comparison

Feature faulen fauler
Definition von Mikroorganismen zersetzt werden; in Fäulnis übergehen Nominativ Singular Maskulinum der starken Deklination des Positivs des Adjektivs faul

Where the eye mixes faulen and fauler

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.

6 ch
faulen
6 ch
fauler

Why the eye confuses faulen with fauler

These two trip readers on the page rather than in the ear: faulen is [ˈfaʊ̯lən] while fauler is [ˈfaʊ̯lɐ]. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - n in “faulen” becomes r in “fauler”, and the parts of speech differ too (verb vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 47929, derived from the frequency rank of both members and their visual similarity.

faulen is recorded at frequency rank #17,886, classified as averb, pronounced [ˈfaʊ̯lən]. fauler is at rank #30,043, tagged as anadj, pronounced [ˈfaʊ̯lɐ].

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 47929, this pair ranks #1,266,957 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of faulen vs fauler

Shared letters: aeflu. Private to "faulen": n. Private to "fauler": r.

"faulen" · 6 letters · shape CVVCVC  ·  "fauler" · 6 letters · shape CVVCVC

Known mistypes of this pair

  • faulenafulen · faluen · faueln · faulenn · faullen · faulne · ffaulen · fualen
  • faulerafuler · faluer · fauelr · faulerr · fauller · faulre · ffauler · fualer

Frequently Asked Questions

Can "faulen" and "fauler" be used interchangeably?
No - they are not even the same part of speech. "faulen" is a verb and "fauler" an adjective, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "faulen" vs "fauler" - which ranks higher?
"faulen" is the more common of the two: it sits at frequency rank #17,886 in our German list, against #30,043 for "fauler". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "faulen" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "fauler" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,266,957 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "faulen" and "fauler" also get mixed up with nearby pairs, the highest-scored neighbour is "Färber vs fauler". 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 #1,266,957 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