珪藻[keisou] diatom
珪藻土[keisoudo] diatomaceous soil
二酸化珪素[nisankakeiso] silicon dioxide (SiO2)
珪素[keiso] silicon (Si)
珪酸[keisan] silicic acid

珪砂[keisha] silica sand
珪石[keiseki] silica
珪性肺塵症[keiseihaijinshou] pneumonoultramicroscopicsilicovolcanoconiosis
珪素鋼[keisokou] silicon steel
珪素樹脂[keisojushi] silicone resin

明白[meihaku] obvious
白地[akarasama] plain
白口[shiroguchi] white croaker (Pennahia argentata)
白耳義[berugii] Belgium
白竜[peeron] dragon boat (long 22-person canoe used for racing)

黄白[kouhaku] yellow and white
黄白色[ouhakushoku] yellowish-white
灰白[kaihaku] gray
灰白質[kaihakushitsu] gray matter
灰白色[kaihakushoku] grayish white

圧し石[oshiishi] stone weight
一石[isseki] one game (of go)
一石二鳥[issekinichou] killing two birds with one stone
英国石油[eikokusekiyu] British Petroleum
下石[shitaishi] nether millstone

化粧石鹸[keshousekken] toilet soap
化石[kaseki] fossil
化石学[kasekigaku] paleontology
化石層[kasekisou] fossil bed
化石燃料[kasekinenryou] fossil fuel

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