流水|りゅうすいryuusui[0]heiban (flat)

1. nounrunning water
   やけどした指ゆびを、流水りゅうすい中ちゅうで冷ひやしなさい。↗

   Cool the burned finger in running water.
2. nounflowing water; stream

• Synonym流れながれNeutralThe broadest and most common term: any flow — water, people, time — and figurative currents or courses of events. 「流水」 refers only to water that is actually flowing.
• Synonym水流すいりゅうWrittenWritten/formal prose for the flow of water, leaning scientific, as in 「水流の速さ」. 「流水」 is the flowing water itself, not the movement.
• Antonym止水しすいWrittenWritten/formal: water that is still and does not flow, as in 「明鏡止水」; the direct opposite of 「流水」.
• Antonym死水しすいWrittenWritten term, usually for water given to a dying person to moisten the lips; only when written 「死水」 for non-flowing water does it contrast with 「流水」.

Use 「流水」 for water that is flowing, as in 「流水で洗う」 or 「行雲流水」. For flow in general, say 「流れ」; in scientific descriptions of water movement, 「水流」. Still, non-flowing water is 「止水」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 流ながれる水みずのこと。