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

煙霞[enka] smoke and mist
霞む[kasumu] to grow hazy
霞ケ関[kasumigaseki] area in Tokyo
雲霞[unka] clouds and haze (fog)
春霞[harugasumi] springtime haze

霞草[kasumisou] baby's-breath
霞網[kasumiami] fowling net
霞目[kasumime] partial blindness
雲霞の如く[unkanogotoku] in swarms