FlussvsFlüssenWhat's the difference?

Which to use

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

#2,955
“Fluss” frequency rank
#18,244
“Flüssen” frequency rank
21199
confusion score

Side-by-Side Comparison

Feature Fluss Flüssen
Definition größeres, fließendes Gewässer Dativ Plural des Substantivs Fluss

Where the eye mixes Fluss and Flüssen

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. Fluss runs 5 letters (CCVCC) against Flüssen's 7 (CCVCCVC) - the length gap alone is often enough to separate them once you know to check it.

5 ch
Fluss
7 ch
Flüssen

Why the eye confuses Fluss with Flüssen

A purely visual mix-up. Fluss ([flʊs]) and Flüssen ([ˈflʏsn̩]) 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 2 letter(s) in length. Our composite confusion score for this pair is 21199, derived from the frequency rank of both members and their visual similarity.

Fluss is recorded at frequency rank #2,955, classified as anoun, pronounced [flʊs]. Flüssen is at rank #18,244, tagged as anoun, pronounced [ˈflʏsn̩].

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 21199, this pair ranks #1,889,071 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of Fluss vs Flüssen

Shared letters: fls. Private to "Fluss": u. Private to "Flüssen": enü.

"Fluss" · 5 letters · shape CCVCC  ·  "Flüssen" · 7 letters · shape CCVCCVC

Known mistypes of this pair

  • Fluss ← ffluss · flluss · flsus · flus · fluß · fulss · lfuss

Frequently Asked Questions

Is swapping "Fluss" for "Flüssen" ever safe?
No. They are said differently ([flʊs] versus [ˈflʏsn̩]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "Fluss" or "Flüssen"?
"Fluss" is the more common of the two: it sits at frequency rank #2,955 in our German list, against #18,244 for "Flüssen". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "Fluss" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Flüssen" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,889,071 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "Fluss" and "Flüssen" also get mixed up with nearby pairs, the highest-scored neighbour is "Flüssen vs fusses". 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 #1,889,071 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