水 道 水(すいどうすい)

すいどうすい

noun

tap water; municipal water

1. tap water; municipal water; mains water

Water supplied through the public water system to homes and buildings through pipes. Distinguished from well water, spring water, or bottled water.

日本(にほん)の水道水(すいどうすい)はそのまま飲(の)める。

Japan's tap water is safe to drink as is.

水道水(すいどうすい)とミネラルウォーター、どちらを使(つか)っていますか。

Do you use tap water or mineral water?

この地域(ちいき)の水道水(すいどうすい)は硬度(こうど)が低(ひく)く、軟水(なんすい)なので料理(りょうり)にも適(てき)している。

The tap water in this area has low hardness and is soft, making it suitable for cooking as well.

A compound of 水道(すいどう) (waterworks; water supply system) and 水(すい) (water). Japan is one of the few countries in the world where tap water is safe to drink directly from the faucet, a fact often mentioned in travel guides and daily conversation. Despite this, many Japanese people prefer bottled water or use water filters.

Common collocations

水道水(すいどうすい)を飲(の)む: to drink tap water
水道水(すいどうすい)の水質(すいしつ): tap water quality
水道水(すいどうすい)で十分(じゅうぶん): tap water is sufficient
水道水(すいどうすい)を浄水(じょうすい)する: to purify tap water

Related words

水道(すいどう): water supply; plumbing — the system itself
ミネラルウォーター: mineral water — bottled water
井戸水(いどみず): well water — water drawn from a well
浄水器(じょうすいき): water purifier — a filter device for tap water

Related Words

Related: ミネラルウォーター (mineral water)

Related: 浄水器(じょうすいき) (water purifier)

Compare: 雨水(あまみず) (rainwater)

Compare: 飲料水(いんりょうすい) (drinking water)

Compare: 上水(じょうすい) (water supply)

general

Added 2026.4.25 0:29 · Revised 2026.9.2 13:02

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