Which to use
“Aufbau” and “Ausbaus” are a confusable German pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #2,189
- “Aufbau” frequency rank
- #37,369
- “Ausbaus” frequency rank
- 39558
- confusion score
Side-by-Side Comparison
| Feature | Aufbau | Ausbaus |
|---|---|---|
| Definition | der Vorgang des Aufbauens eines Gebäudes, eines Systems oder einer sonstwie gearteten Struktur | Genitiv Singular des Substantivs Ausbau |
Where the eye mixes Aufbau and Ausbaus
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. Aufbau runs 6 letters (VVCCVV) against Ausbaus's 7 (VVCCVVC) - the length gap alone is often enough to separate them once you know to check it.
Visual trap between Aufbau and Ausbaus
A purely visual mix-up. Aufbau ([ˈaʊ̯fˌbaʊ̯]) 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 1 letter(s) in length. Our composite confusion score for this pair is 39558, derived from the frequency rank of both members and their visual similarity.
Aufbau is recorded at frequency rank #2,189, classified as anoun, pronounced [ˈaʊ̯fˌbaʊ̯]. 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 39558, this pair ranks #1,533,438 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of Aufbau vs Ausbaus
Shared letters: abu. Private to "Aufbau": f. Private to "Ausbaus": s.
"Aufbau" · 6 letters · shape VVCCVV · "Ausbaus" · 7 letters · shape VVCCVVC
Known mistypes of this pair
Frequently Asked Questions
Do "Aufbau" and "Ausbaus" mean the same thing in a sentence?
In ordinary German text, does "Aufbau" or "Ausbaus" show up more?
After this comparison
Eye-level mix-up between "Aufbau" and "Ausbaus" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "Aufbau" 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 #1,533,438 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
- "Aufbau" 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 #1,533,438 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.