共きょう同どう栓せん

noun

communal tap; shared water faucet

Refers to a water tap shared by multiple households or residents, often in older apartment buildings or communal living areas.

• このアパートには共きょう同どう栓せんしかないので、水すい道どう代だいは家や賃ちんに含ふくまれている。

  Since this apartment only has a communal tap, the water bill is included in the rent.