気孔[kikou] pore
空気孔[kuukikou] air pocket
孔子[koushi] Confucius
孔雀[kujaku] peafowl (inc. the male peacock, female peahen, and young peachick)
孔雀石[kujakuseki] malachite

孔雀妙王[kujakumyouou] Mayuri Vidya-raja
細孔[saikou] pore
多孔[takou] porous
通気孔[tsuukikou] vent

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

隕星[insei] meteor
隕石[inseki] meteorite

隕鉄[intetsu] meteoric iron
隕石孔[insekikou] meteorite crater