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

蛭子[ebisu] Ebisu (god of fishing and commerce)
肝蛭[kantetsu] sheep liver fluke (Fasciola hepatica)
雄蛭木[ohirugi] black mangrove (Bruguiera gymnorrhiza)
雌蛭木[mehirugi] Kandelia obovata (species of mangrove)
蛭木[hirugi] mangrove (of family Rhizophoraceae)

八重山蛭木[yaeyamahirugi] Rhizophora mucronata (species of mangrove)
蛭木騙[hirugidamashi] grey mangrove (Avicennia marina)
蛭石[hiruishi] vermiculite
肝蛭症[kantetsushou] fascioliasis