"trunk line" in German trunk line Fernvermittlungsleitung Hauptstrecke Hauptverbindung Fernstrecke Detailed translations for "trunk line" trunk line 1. telecommunications trunk line(also: trunk circuit, trunk) die Fernvermittlungsleitung{feminine} 2. railway trunk line(also: main route, main track, mail line) die Hauptstrecke{feminine} trunk line(also: main route, main track, mail line) die Hauptverbindung{feminine} trunk line(also: main route, main track, mail line) die Fernstrecke{feminine} English synonyms for "trunk line" trunk line {n} trunk route