The water supply system; tap water and the infrastructure that supplies water to buildings.
このアパートは水道が古くて、水圧が低い。
The water pipes in this apartment are old and the water pressure is low.
水道の検針票がポストに入っていた。
The water bill reading notice was put in the mailbox.
断水のため、午後は水道が使えません。
Due to a water outage, the water supply won't be available in the afternoon.
A channel or strait — a narrow passage of water.
島と本土の間の水道は船が多く行き交う。
The channel between the island and the mainland has many boats passing through.
この水道は潮の流れが速いので注意が必要だ。
This strait has strong tidal currents, so caution is necessary.
A watercourse or waterway — canals or channels that carry water.
田んぼには水道を引いて水を入れる。
They divert a waterway to fill the rice fields.
古い町には趣のある水道が残っている。
An old town still has charming waterways remaining.