German edit

 
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Pronunciation edit

  • IPA(key): /ˈpʁyːfˌʃtaɪ̯n/
  • (file)

Noun edit

Prüfstein m (strong, genitive Prüfsteines or Prüfsteins, plural Prüfsteine)

  1. touchstone

Declension edit

Further reading edit