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

磐石[banjaku] huge rock
大磐石[daibanjaku] large rock
落磐[rakuban] cave-in
常磐御柳[tokiwagyoryuu] beefwood (Casuarina equisetifolia)
磐座[iwakura] dwelling place of a god (usu. in reference to a large rock)

常磐木[tokiwagi] evergreen tree
磐境[iwasaka] shrine
常磐津節[tokiwazubushi] style of joruri narrative used for kabuki dances
常磐津[tokiwazu] style of joruri narrative used for kabuki dances