Alptraum

== German == === Etymology === Alp +‎ Traum === Pronunciation === IPA(key): /ˈalptʁaʊ̯m/ === Noun === Alptraum m (strong, genitive Alptraumes or Alptraums, plural Alpträume) alternative spelling of Albtraum ==== Usage notes ==== Standard spelling until 1996; still correct, but disfavoured by Duden and now less common. ==== Declension ==== === References ===