German Etymology voll (“full”) + Mond (“moon”). Pronunciation Audio:(file) Noun Vollmond m (strong, genitive Vollmondes or Vollmonds, no plural) full moon Antonym: Neumond Declension More information singular, indef. ... singular indef. def. noun nominative ein der Vollmond genitive eines des Vollmondes, Vollmonds dative einem dem Vollmond, Vollmonde1 accusative einen den Vollmond Close Declension of Vollmond [sg-only, masculine, strong] 1Now rare, see notes. See also Halbmond Further reading “Vollmond” in Duden online “Vollmond” in Digitales Wörterbuch der deutschen Sprache Wikiwand - on Seamless Wikipedia browsing. On steroids.