See also: dreier Bavarian Etymology drei + -er Pronunciation IPA(key): /ˈd̥rɑɛ̯ɐ/, [ˈd̥rɑɛ̯ʲɐ] IPA(key): /ˈd̥ræːɐ/ (East Central, Vienna) Noun Dreier m (plural Dreier) three (digit or figure) an academic grade indicating "satisfactory" or "average", corresponding roughly to a C in English-speaking countries threesome German Etymology drei + -er Pronunciation IPA(key): /ˈdraɪ̯ɐ/ Audio:(file) Noun Dreier m (strong, genitive Dreiers, plural Dreier) (regional) three (colloquial, polyamory) threesome Declension More information singular, plural ... singular plural indef. def. noun def. noun nominative ein der Dreier die Dreier genitive eines des Dreiers der Dreier dative einem dem Dreier den Dreiern accusative einen den Dreier die Dreier Close Declension of Dreier [masculine, strong] Coordinate terms Achter (8)Einer (1)Einser (1)Elfer (11)Fünfer (5)Hunderter (100)Neuner (9)Sechser (6)Siebener (7)Tausender (1000)Vierer (4)Zehner (10)Zweier (2)Zwölfer (12) Derived terms flotter Dreier Further reading “Dreier” in Digitales Wörterbuch der deutschen Sprache “Dreier” in Uni Leipzig: Wortschatz-Lexikon “Dreier” in Duden online “Dreier” in OpenThesaurus.de Dreier on the German Wikipedia.Wikipedia de Wikiwand - on Seamless Wikipedia browsing. On steroids.