Etymology fallen (“to fall”) + Beil (“hatchet”) Pronunciation IPA(key): /ˈfalˌbaɪ̯l/ Audio:(file) Noun Fallbeil n (strong, genitive Fallbeiles or Fallbeils, plural Fallbeile) guillotine (execution machine) Synonyms: Guillotine, (obsolete) Fallschwertmaschine Declension More information singular, plural ... singular plural indef. def. noun def. noun nominative ein das Fallbeil die Fallbeile genitive eines des Fallbeiles, Fallbeils der Fallbeile dative einem dem Fallbeil, Fallbeile1 den Fallbeilen accusative ein das Fallbeil die Fallbeile Close Declension of Fallbeil [neuter, strong] 1Now rare, see notes. Further reading “Fallbeil” in Duden online “Fallbeil” in Digitales Wörterbuch der deutschen Sprache