fünfvsfürnWhat's the difference?

Quick tell: fünf is a num, fürn is an abbrev, so they fill different roles in a sentence.

Which to use

“fünf” is a num and “fürn” is an abbrev - they look or sound alike but fill different roles in a sentence.

#442
“fünf” frequency rank
#16,708
“fürn” frequency rank
17150
confusion score

Side-by-Side Comparison

Feature fünf fürn
Definition fünf, die Kardinalzahl zwischen vier und sechs Kontraktion aus „für“ und „den“, wobei „den“ Akkusativ Singular Maskulinum des Definitartikels ist

Where the eye mixes fünf and fürn

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

4 ch
fünf
4 ch
fürn

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: fünf is [fʏnf] while fürn is [fyːɐ̯n]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (num vs abbrev), which is usually the fastest check. Our composite confusion score for this pair is 17150, derived from the frequency rank of both members and their visual similarity.

fünf is recorded at frequency rank #442, classified as anum, pronounced [fʏnf]. fürn is at rank #16,708, tagged as anabbrev, pronounced [fyːɐ̯n].

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 17150, this pair ranks #1,929,927 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of fünf vs fürn

Shared letters: fnü. Private to "fünf": -. Private to "fürn": r.

"fünf" · 4 letters · shape CVCC  ·  "fürn" · 4 letters · shape CVCC

Frequently Asked Questions

Can "fünf" and "fürn" be used interchangeably?
No - they are not even the same part of speech. "fünf" is a num and "fürn" an abbrev, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "fünf" or "fürn"?
"fünf" is the more common of the two: it sits at frequency rank #442 in our German list, against #16,708 for "fürn". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

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

Source: FrequencyWords open word-frequency list