海亀[umigame] sea turtle
亀の子[kamenoko] young turtle (tortoise)
亀の手[kamenote] barnacle
亀鑑[kikan] pattern
亀甲[kikkou] tortoise shell

亀頭[kitou] glans (esp. glans penis)
亀裂[kiretsu] crack
水亀[ishigame] any turtle of the genus Mauremys (esp. the Japanese pond turtle, Mauremys japonica)
盲亀[mouki] blind turtle

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

暗赤色[ansekishoku] dark red
遠赤外[ensekigai] far infrared
真赤[makka] bright red
赤い[akai] red
赤鱝[akaei] red stingray (Dasyatis akajei)

赤ちゃん[akachan] baby
赤らむ[akaramu] to become red
赤らめる[akarameru] to blush
赤ら顔[akaragao] red faced
赤ん坊[akanbou] baby