• 滄海そうかい

  the blue sea, blue waters

• 滄海桑田そうかいそうでん

  the world is a scene of constant changes, the blue sea turns into a mulberry field

• 桑田滄海そうでんそうかい

  the world is a scene of constant changes (as a mulberry field changing into a blue sea)

• 滄海の一粟そうかいのいちぞく

  drop in the bucket, drop in the ocean, one grain of millet in a vast ocean

• 桑田変じて滄海となるそうでんへんじてそうかいとなる

  the world is a scene of constant changes, a mulberry field changes into a blue sea

• 滄溟そうめい

  great blue sea, ocean

• 滄海遺珠そうかいのいしゅ

  talented person unbeknownst to the world