海水(かいすい)

かいすい
noun
seawater
1. seawater, ocean water
Water from the sea or ocean. Contains dissolved salts and minerals.
海水(かいすい)はしょっぱい。
Seawater is salty.
海水浴(かいすいよく)に行(い)こう。
Let's go swimming in the sea.
海水(かいすい)から塩(しお)を作(つく)る伝統的(でんとうてき)な方法(ほうほう)が今(いま)でも残(のこ)っている。
Traditional methods of making salt from seawater still remain today.

海水(かいすい) is seawater — a straightforward compound of 海(うみ) (sea) + 水(みず) (water).

COMMON COMPOUNDS:

  • 海水浴(かいすいよく): sea bathing, swimming in the ocean
  • 海水浴場(かいすいよくじょう): beach, swimming area
  • 海水(かいすい)魚(ぎょ): saltwater fish
  • 海水(かいすい)温度(おんど): seawater temperature

USAGE:
海水浴(かいすいよく) is a very common summer activity. 海水浴場(かいすいよくじょう) refers to designated swimming beaches.

CONTRAST:

  • 海水(かいすい): seawater (salt water)
  • 淡水(たんすい): fresh water
  • 真水(まみず): fresh water (everyday term)

Related Words

Antonym: 淡水(たんすい) (fresh water)
general
Added 2026.2.24 19:00 · Revised 2026.4.8 11:45
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