真水|まみずmamizu[0]heiban (flat)

1. no-adjectivefresh water
   その魚さかなは真水まみずに住すむ。↗

   That fish lives in fresh water.
2. no-adjectivefiscal spending; government pump priming

• Synonym淡水たんすいNeutralWater with little or no salt, used in both everyday and scientific contexts, as in 「淡水魚」 and 「淡水湖」. 「真水」 is more colloquial and also has an economic sense.
• Antonym塩水しおみずNeutralWater containing salt; an everyday term, the opposite of salt-free 「真水」.
• Antonym海水かいすいNeutralSeawater — the salty water of the sea, opposed to fresh water 「真水」.

For water without salt, use 「真水」, as in 「真水で洗う」; in economics it also means real fiscal spending. 「淡水」 is also common, often in compounds like 「淡水魚」. The opposites are 「海水」 and 「塩水」.

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

1. 塩分えんぶんなどが混まじっていない水みず。淡水たんすい。
2. (比喩ひゆ)政府せいふの経済けいざい対策たいさくのうち、使途しとの振替ふりかえや徴税ちょうぜいの猶予ゆうよなどではなく実際じっさいに国内総生産こくないそうせいさんを押し上おしあげる効果こうかのある予算よさん。