AltbauvsAnbauWhat's the difference?

Which to use

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

#21,516
“Altbau” frequency rank
#6,501
“Anbau” frequency rank
28017
confusion score

Side-by-Side Comparison

Feature Altbau Anbau
Definition älteres Gebäude, welches noch vor einem bestimmten Zeitpunkt — in der Regel noch vor dem Zweiten Weltkrieg — fertiggestellt worden ist Kultivierung von Nutz- oder Zierpflanzen

Where the eye mixes Altbau and Anbau

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. Altbau runs 6 letters (VCCCVV) against Anbau's 5 (VCCVV) - the length gap alone is often enough to separate them once you know to check it.

6 ch
Altbau
5 ch
Anbau

Why the eye confuses Altbau with Anbau

A purely visual mix-up. Altbau ([ˈaltˌbaʊ̯]) and Anbau ([ˈanˌbaʊ̯]) 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 28017, derived from the frequency rank of both members and their visual similarity.

Altbau is recorded at frequency rank #21,516, classified as anoun, pronounced [ˈaltˌbaʊ̯]. Anbau is at rank #6,501, tagged as anoun, pronounced [ˈanˌbaʊ̯].

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 28017, this pair ranks #1,792,005 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of Altbau vs Anbau

Shared letters: abu. Private to "Altbau": lt. Private to "Anbau": n.

"Altbau" · 6 letters · shape VCCCVV  ·  "Anbau" · 5 letters · shape VCCVV

Known mistypes of this pair

  • Altbau ← albtau · alltbau · altabu · altbbau · altbua · alttbau · atlbau · latbau
  • Anbau ← abnau · anabu · anbbau · anbua · annbau · nabau

Frequently Asked Questions

Do "Altbau" and "Anbau" mean the same thing in a sentence?
No. They are said differently ([ˈaltˌbaʊ̯] versus [ˈanˌbaʊ̯]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary German text, does "Altbau" or "Anbau" show up more?
"Anbau" is the more common of the two: it sits at frequency rank #6,501 in our German list, against #21,516 for "Altbau". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "Altbau" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Anbau" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,792,005 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "Altbau" and "Anbau" also get mixed up with nearby pairs, the highest-scored neighbour is "Alban vs Altbau". 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 #1,792,005 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