Aach

[aːx]

/[aːx]/ name

By · According to Wiktionary data (CC BY-SA) ·

The verdict

“Aach” is uncommon German (frequency #51,887 among 113,935 “A” headwords), classed as a proper noun. The kind of spelling people second-guess.

#51,887
frequency rank, German
113,935
“A” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Abfluss der Donau zum Bodensee (teils unterirdisch)

Key facts for Aach
PropertyValue
HeadwordAach
LanguageGerman
Part of speechProper noun
IPA[aːx]
Letters4
Frequency rank#51,887
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “Aach” sits in German frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). Aach lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Rare enough to double-check

Aach is uncommon German at frequency #51,887 among 113,935 “A” headwords, classed as aproper noun, transcribed [aːx]. Rarity is why readers land here mid-draft. 13 senses are on record.

No misspelling variants are generated for Aach in our index, suggesting the orthography follows predictable German patterns. No confusable counterpart is on file for this word, since its spelling is unusual enough that it doesn't cluster with a lookalike.

This entry carries no recorded etymology, so its spelling pattern is best understood through pronunciation rather than a traceable origin. The correct German form is Aach, spelled A-A-C-H.

Definition

  1. 1
    Abfluss der Donau zum Bodensee (teils unterirdisch)
  2. 2
    mehrere Nebenflüsse des Rheins, welche in den Bodensee münden
  3. 3
    Aach in den Obersee, bei Arbon, Bezirk Arbon, Kanton Thurgau
  4. 4
    Aach in den Obersee, bei Romanshorn, Bezirk Arbon, Kanton Thurgau
  5. 5
    Stockacher Aach, in den Überlinger See, bei Bodman (Bodman-Ludwigshafen), Landkreis Konstanz, Baden-Württemberg
  6. 6
    Mahlspürer Aach, linker Zufluss der Stockacher Aach, bei Stockach, Landkreis Konstanz, Baden-Württemberg
  7. 7
    Alte Aach, Nebenlauf der Stockacher Aach, bei Wahlwies (Stockach), Landkreis Konstanz, Baden-Württemberg
  8. 8
    Linzer Aach (Beinamen: Hintere Aach, Salemer Aach, Seefelder Aach), in den Überlinger See, bei Unteruhldingen (Uhldingen-Mühlhofen) Bodenseekreis, Baden-Württemberg
  9. 9
    Deggenhauser Aach, linker Zufluss der Linzer Aach, bei Buggensegel (Salem), Bodenseekreis, Baden-Württemberg
  10. 10
    Radolfzeller Aach (Beinamen: Hegauer Aach, Singener Aach), in den Zeller See, bei Radolfzell, Landkreis Konstanz, Baden-Württemberg
  11. 11
    Zwiefalter Aach, linker Zufluss der Donau bei Zwiefaltendorf (Riedlingen), Landkreis Biberach, Baden-Württemberg
  12. 12
    ein Nebenfluss der Iller
  13. 13
    rechter Oberlauf der Rietaach, bei Altstätten, Kanton St. Gallen, die in den Rheintaler Binnenkanal entwässert

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 German corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "Aach"?
"Aach" is spelled A-A-C-H. The IPA pronunciation is [aːx].
What does "Aach" mean?
As a proper noun, "Aach" means: Abfluss der Donau zum Bodensee (teils unterirdisch)
How do you pronounce "Aach"?
The IPA (International Phonetic Alphabet) transcription for "Aach" is [aːx]. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "Aach" come from?
"Aach" is a German word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Using “Aach”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct German spelling is A-A-C-H - every other letter order is a misspelling in standard orthography.
  • Say it as [aːx] (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more German words and confusable pairs in the same reference. German words

Other uncommon German words near this rank

Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list