於多福[otafuku] homely woman (esp. one with a small low nose, high flat forehead, and bulging cheeks)
圧倒的多数[attoutekitasuu] overwhelming numbers
一妻多夫[issaitafu] polyandry
一番多い[ichibanooi] most numerous
一夫多妻[ipputasai] polygamy

引く手数多[hikuteamata] being very popular
過多[kata] excess
幾多[ikuta] many
ご多忙中[gotabouchuu] in the midst of your work (often used as a formal phrase in business letters, etc.)
好事魔多し[koujimaooshi] Lights are usually followed by shadows

ランゲルハンス島[rangeruhansutou] islets of Langerhans
群島[guntou] island group
孤島[kotou] solitary island
広島県[hiroshimaken] Hiroshima prefecture (Chuugoku area)
鹿児島県[kagoshimaken] Kagoshima prefecture (Kyushu)

諸島[shotou] archipelago
小島[kojima] small island
千島[chishima] Kurile Islands
全島[zentou] the whole island
多島海[tatoukai] archipelago

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