Word

桑田滄海

exp
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).
Word

蒼海

滄海
そうかい
blue waters
Word

滄海一滴

そうかいいってき
a drop in the ocean (bucket)
Word

滄海桑田

exp
そうかいそうでん
The word is a scene of constant changes (as the blue sea changing into a mulberry field). (Chinese legend)
Word

桑田変じて滄海となる

桑田変じて滄海と成る
exp
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
Word

蒼浪

滄浪
そうろう
blue waves; blue wave; hair that has lost its shine due to ageing
Word

滄溟

そうめい
great blue sea; ocean