郵ゆう便びん私し書しょ箱ばこMeaningsNoun1. post office boxKanji used郵mail便convenience私private書write箱boxPitch accentゆうびんししょばこComposed of郵ゆう便びんmail service; postal service; mail; post; postal matter; postal itemsNoun私し書しょ箱ばこpost office boxNoun