Which to use
“Aufbau” is a noun and “aufbaut” is a verb - they look or sound alike but fill different roles in a sentence.
- #2,189
- “Aufbau” frequency rank
- #17,810
- “aufbaut” frequency rank
- 19999
- confusion score
Side-by-Side Comparison
| Feature | Aufbau | aufbaut |
|---|---|---|
| Definition | der Vorgang des Aufbauens eines Gebäudes, eines Systems oder einer sonstwie gearteten Struktur | 3. Person Singular Indikativ Präsens Aktiv der Nebensatzkonjugation des Verbs aufbauen |
Where the eye mixes Aufbau and aufbaut
Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. Aufbau runs 6 letters (VVCCVV) against aufbaut's 7 (VVCCVVC) - the length gap alone is often enough to separate them once you know to check it.
Visual trap between Aufbau and aufbaut
These two trip readers on the page rather than in the ear: Aufbau is [ˈaʊ̯fˌbaʊ̯] while aufbaut is [ˈaʊ̯fˌbaʊ̯t]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 extra letter(s) - “Aufbau” sits inside “aufbaut”, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 19999, 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]. aufbaut is at rank #17,810, tagged as averb, pronounced [ˈaʊ̯fˌbaʊ̯t].
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 19999, this pair ranks #1,902,361 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of Aufbau vs aufbaut
Shared letters: abfu. Private to "Aufbau": -. Private to "aufbaut": t.
"Aufbau" · 6 letters · shape VVCCVV · "aufbaut" · 7 letters · shape VVCCVVC
Known mistypes of this pair
Frequently Asked Questions
Do "Aufbau" and "aufbaut" mean the same thing in a sentence?
Frequency check: "Aufbau" vs "aufbaut" - which ranks higher?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "Aufbau" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "aufbaut" - compare definitions side by side with the headword page. Word entry
- This pair ranks #1,902,361 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
- "Aufbau" and "aufbaut" also get mixed up with nearby pairs, the highest-scored neighbour is "aufbaut vs Aufbauten". 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 #1,902,361 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.