Which to use
“Aufbaus” and “Ausbaus” are a confusable German pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #34,521
- “Aufbaus” frequency rank
- #37,369
- “Ausbaus” frequency rank
- 71890
- confusion score
Side-by-Side Comparison
| Feature | Aufbaus | Ausbaus |
|---|---|---|
| Definition | Genitiv Singular des Substantivs Aufbau | Genitiv Singular des Substantivs Ausbau |
Where the eye mixes Aufbaus and Ausbaus
Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. Aufbaus and Ausbaus follow the identical consonant-vowel pattern (VVCCVVC). Same shape at a glance is often the real trap, independent of shared letters.
Look-alike desk: Aufbaus vs Ausbaus
A purely visual mix-up. Aufbaus ([ˈaʊ̯fˌbaʊ̯s]) and Ausbaus ([ˈaʊ̯sˌbaʊ̯s]) 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 a single letter - f in “Aufbaus” becomes s in “Ausbaus”. Our composite confusion score for this pair is 71890, derived from the frequency rank of both members and their visual similarity.
Aufbaus is recorded at frequency rank #34,521, classified as anoun, pronounced [ˈaʊ̯fˌbaʊ̯s]. Ausbaus is at rank #37,369, tagged as anoun, pronounced [ˈaʊ̯sˌbaʊ̯s].
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 71890, this pair ranks #403,902 of 2,006,359 scored German confusable pairs - among the most confusable pairs.
Orthographic DNA of Aufbaus vs Ausbaus
Shared letters: absu. Private to "Aufbaus": f. Private to "Ausbaus": -.
"Aufbaus" · 7 letters · shape VVCCVVC · "Ausbaus" · 7 letters · shape VVCCVVC
Known mistypes of this pair
Frequently Asked Questions
Do "Aufbaus" and "Ausbaus" mean the same thing in a sentence?
In ordinary German text, does "Aufbaus" or "Ausbaus" show up more?
Useful next steps
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "Aufbaus" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "Ausbaus" - compare definitions side by side with the headword page. Word entry
- This pair ranks #403,902 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
- "Aufbaus" and "Ausbaus" also get mixed up with nearby pairs, the highest-scored neighbour is "Ausbaus vs Auslauf". 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 #403,902 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.