BelüftungvsBlutungTell them apart

Which to use

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

#41,688
“Belüftung” frequency rank
#20,196
“Blutung” frequency rank
61884
confusion score

Side-by-Side Comparison

Feature Belüftung Blutung
Definition das Belüften von Räumen zur Lufterneuerung Austritt von Blut aus dem Gefäßsystem (intrakorporal) in eine andere Körperhöhle (ein anderes Kompartiment) oder (extrakorporal) aus dem Körper heraus

Where the eye mixes Belüftung and Blutung

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. Belüftung runs 9 letters (CVCVCCVCC) against Blutung's 7 (CCVCVCC) - the length gap alone is often enough to separate them once you know to check it.

9 ch
Belüftung
7 ch
Blutung

Why the eye confuses Belüftung with Blutung

A purely visual mix-up. Belüftung ([bəˈlʏftʊŋ]) and Blutung ([ˈbluːtʊŋ]) 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 61884, derived from the frequency rank of both members and their visual similarity.

Belüftung is recorded at frequency rank #41,688, classified as anoun, pronounced [bəˈlʏftʊŋ]. Blutung is at rank #20,196, tagged as anoun, pronounced [ˈbluːtʊŋ].

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 61884, this pair ranks #733,103 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of Belüftung vs Blutung

Shared letters: bglntu. Private to "Belüftung": efü. Private to "Blutung": -.

"Belüftung" · 9 letters · shape CVCVCCVCC  ·  "Blutung" · 7 letters · shape CCVCVCC

Known mistypes of this pair

  • Blutung ← bblutung · bllutung · bltuung · blutnug · bluttung · blutugn · blutungg · blutunng

Frequently Asked Questions

Is swapping "Belüftung" for "Blutung" ever safe?
No. They are said differently ([bəˈlʏftʊŋ] versus [ˈbluːtʊŋ]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "Belüftung" vs "Blutung" - which ranks higher?
"Blutung" is the more common of the two: it sits at frequency rank #20,196 in our German list, against #41,688 for "Belüftung". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "Belüftung" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Blutung" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #733,103 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "Belüftung" and "Blutung" also get mixed up with nearby pairs, the highest-scored neighbour is "Blutung vs Brüstung". 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 #733,103 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