fünftelvsfünfterWhich spelling fits?

Quick tell: fünftel is a adjective, fünfter is an unknown, so they fill different roles in a sentence.

Which to use

“fünftel” is an adjective and “fünfter” is an unknown - they look or sound alike but fill different roles in a sentence.

#18,551
“fünftel” frequency rank
#15,631
“fünfter” frequency rank
34182
confusion score

Side-by-Side Comparison

Feature fünftel fünfter
Definition aus einem von fünf gleich großen Teilen bestehend unbestimmte männliche Deklination von fünfte

Where the eye mixes fünftel and fünfter

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. fünftel and fünfter follow the identical consonant-vowel pattern (CVCCCVC). Same shape at a glance is often the real trap, independent of shared letters.

7 ch
fünftel
7 ch
fünfter

Look-alike desk: fünftel vs fünfter

These two trip readers on the page rather than in the ear: fünftel is [ˈfʏnftl̩] while fünfter is [ˈfʏnftɐ]. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - l in “fünftel” becomes r in “fünfter”, and the parts of speech differ too (adjective vs unknown), which is usually the fastest check. Our composite confusion score for this pair is 34182, derived from the frequency rank of both members and their visual similarity.

fünftel is recorded at frequency rank #18,551, classified as anadj, pronounced [ˈfʏnftl̩]. fünfter is at rank #15,631, tagged as anunknown, pronounced [ˈfʏnftɐ].

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 34182, this pair ranks #1,669,229 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of fünftel vs fünfter

Shared letters: efntü. Private to "fünftel": l. Private to "fünfter": r.

"fünftel" · 7 letters · shape CVCCCVC  ·  "fünfter" · 7 letters · shape CVCCCVC

Frequently Asked Questions

Can "fünftel" and "fünfter" be used interchangeably?
No - they are not even the same part of speech. "fünftel" is an adjective and "fünfter" an unknown, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "fünftel" or "fünfter" show up more?
"fünfter" is the more common of the two: it sits at frequency rank #15,631 in our German list, against #18,551 for "fünftel". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "fünftel" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "fünfter" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,669,229 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "fünftel" and "fünfter" also get mixed up with nearby pairs, the highest-scored neighbour is "fünft vs fünftel". Nearby pair

Confusion rank #1,669,229 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