海鷂魚[ei] ray (fish)
井の中の蛙大海を知らず[inonakanokawazutaikaiwoshirazu] parochial
一天四海[ittenshikai] the world
雲海[unkai] sea of clouds
沿海[enkai] coast

遠海[enkai] deep sea
黄海[koukai] Yellow Sea
温海[atsumi] warm sea
海の幸[uminosachi] seafood

深淵[shinen] abyss
淵源[engen] origin
淵叢[ensou] gathering spot

海淵[kaien] ocean depths
深淵に臨むが如し[shinenninozomugagotoshi] like looking out on an abyss
淵酔[ensui] type of imperial banquet held during the Heian period and later