aufzubauenvsaufzuräumenWhich spelling fits?

Which to use

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

#5,911
“aufzubauen” frequency rank
#28,074
“aufzuräumen” frequency rank
33985
confusion score

Side-by-Side Comparison

Feature aufzubauen aufzuräumen
Definition erweiterter Infinitiv Aktiv des Verbs aufbauen erweiterter Infinitiv Aktiv des Verbs aufräumen

Where the eye mixes aufzubauen and aufzuräumen

Muted = shared; highlighted = the visual trap. They share 8 letters in sequence. aufzubauen runs 10 letters (VVCCVCVVVC) against aufzuräumen's 11 (VVCCVCVVCVC) - the length gap alone is often enough to separate them once you know to check it.

10 ch
aufzubauen
11 ch
aufzuräumen

Look-alike desk: aufzubauen vs aufzuräumen

A purely visual mix-up. aufzubauen ([ˈaʊ̯ft͡suˌbaʊ̯ən]) and aufzuräumen ([ˈaʊ̯ft͡suˌʁɔɪ̯mən]) 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 33985, derived from the frequency rank of both members and their visual similarity.

aufzubauen is recorded at frequency rank #5,911, classified as averb, pronounced [ˈaʊ̯ft͡suˌbaʊ̯ən]. aufzuräumen is at rank #28,074, tagged as averb, pronounced [ˈaʊ̯ft͡suˌʁɔɪ̯mən].

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 33985, this pair ranks #1,673,634 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of aufzubauen vs aufzuräumen

Shared letters: aefnuz. Private to "aufzubauen": b. Private to "aufzuräumen": mrä.

"aufzubauen" · 10 letters · shape VVCCVCVVVC  ·  "aufzuräumen" · 11 letters · shape VVCCVCVVCVC

Known mistypes of this pair

  • aufzubauen ← afuzubauen · auffzubauen · aufuzbauen · aufzbuauen · aufzuabuen · aufzubaeun · aufzubauenn · aufzubaune

Frequently Asked Questions

Is swapping "aufzubauen" for "aufzuräumen" ever safe?
No. They are said differently ([ˈaʊ̯ft͡suˌbaʊ̯ən] versus [ˈaʊ̯ft͡suˌʁɔɪ̯mən]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary German text, does "aufzubauen" or "aufzuräumen" show up more?
"aufzubauen" is the more common of the two: it sits at frequency rank #5,911 in our German list, against #28,074 for "aufzuräumen". 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 "aufzubauen" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "aufzuräumen" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,673,634 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "aufzubauen" and "aufzuräumen" also get mixed up with nearby pairs, the highest-scored neighbour is "aufzuräumen vs auszuräumen". 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 #1,673,634 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