fünftenvsfünfzehnWhat's the difference?

Quick tell: fünften is a unknown, fünfzehn is a num, so they fill different roles in a sentence.

Which to use

“fünften” is an unknown and “fünfzehn” is a num - they look or sound alike but fill different roles in a sentence.

#4,432
“fünften” frequency rank
#11,876
“fünfzehn” frequency rank
16308
confusion score

Side-by-Side Comparison

Feature fünften fünfzehn
Definition Genitiv Singular Maskulinum des Numerals fünfte die Kardinalzahl zwischen vierzehn und sechzehn

Where the spellings diverge

Shared letters are muted; the letters that actually set fünften and fünfzehn apart are highlighted. They share 6 letters in sequence, which is exactly why the eye skips the difference.

7 ch
fünften
8 ch
fünfzehn

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: fünften is [ˈfʏnftn̩] while fünfzehn is [ˈfʏnft͡seːn]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (unknown vs num), which is usually the fastest check. Our composite confusion score for this pair is 16308, derived from the frequency rank of both members and their visual similarity.

fünften is recorded at frequency rank #4,432, classified as anunknown, pronounced [ˈfʏnftn̩]. fünfzehn is at rank #11,876, tagged as anum, pronounced [ˈfʏnft͡seːn].

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 16308, this pair ranks #1,936,910 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of fünften vs fünfzehn

Shared letters: efnü. Private to "fünften": t. Private to "fünfzehn": hz.

"fünften" · 7 letters · shape CVCCCVC  ·  "fünfzehn" · 8 letters · shape CVCCCVCC

Frequency comparison

fünften#4,432
fünfzehn#11,876

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "fünften" and "fünfzehn" be used interchangeably?
No - they are not even the same part of speech. "fünften" is an unknown and "fünfzehn" a num, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "fünften" or "fünfzehn"?
"fünften" is the more common of the two: it sits at frequency rank #4,432 in our German list, against #11,876 for "fünfzehn". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering fünften vs fünfzehn

The fastest way to pick the right one every time.

  • Check the role first: if you need an unknown, it's “fünften”; for a num, it's “fünfzehn”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “fünften” entry
  • Browse more pairs most likely to be confused. Most confusable

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list