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

眼軟膏[gannankou] eye ointment
膏薬[kouyaku] plaster
石膏[sekkou] plaster
軟膏[nankou] ointment
二股膏薬[futamatakouyaku] double-dealer

膏汗[aburaase] cold sweat
絆創膏[bansoukou] adhesive plaster
内股膏薬[uchimatakouyaku] double-dealer
膏血[kouketsu] (hard-earned rewards of) sweat and blood