Which to use
“aufbaut” is a verb and “Ausbaus” is a noun - they look or sound alike but fill different roles in a sentence.
- #17,810
- “aufbaut” frequency rank
- #37,369
- “Ausbaus” frequency rank
- 55179
- confusion score
Side-by-Side Comparison
| Feature | aufbaut | Ausbaus |
|---|---|---|
| Definition | 3. Person Singular Indikativ Präsens Aktiv der Nebensatzkonjugation des Verbs aufbauen | Genitiv Singular des Substantivs Ausbau |
Where the eye mixes aufbaut and Ausbaus
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. aufbaut and Ausbaus follow the identical consonant-vowel pattern (VVCCVVC). Same shape at a glance is often the real trap, independent of shared letters.
Visual trap between aufbaut and Ausbaus
These two trip readers on the page rather than in the ear: aufbaut is [ˈaʊ̯fˌbaʊ̯t] while Ausbaus is [ˈaʊ̯sˌbaʊ̯s]. 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 (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 55179, derived from the frequency rank of both members and their visual similarity.
aufbaut is recorded at frequency rank #17,810, classified as averb, pronounced [ˈaʊ̯fˌbaʊ̯t]. 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 55179, this pair ranks #989,679 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of aufbaut vs Ausbaus
Shared letters: abu. Private to "aufbaut": ft. Private to "Ausbaus": s.
"aufbaut" · 7 letters · shape VVCCVVC · "Ausbaus" · 7 letters · shape VVCCVVC
Known mistypes of this pair
Frequently Asked Questions
Do "aufbaut" and "Ausbaus" mean the same thing in a sentence?
Which is more common, "aufbaut" or "Ausbaus"?
After this comparison
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "aufbaut" 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 #989,679 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
- "aufbaut" 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 #989,679 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.