共きょう同どう電でん話わ

noun

party line

A telephone line shared by multiple subscribers, common in early telephone systems. Now mostly historical or rural.

• 昔むかしは共きょう同どう電でん話わが多おおく、隣となりの家いえの会かい話わが聞きこえることもあった。

  In the past, party lines were common, and you could sometimes hear the neighbors' conversations.