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

柳の下に何時も泥鰌は居らぬ[yanaginoshitaniitsumodojouhaoranu] a fox is not taken twice in the same snare
仏泥鰌[hotokedojou] Japanese eight-barbel loach (species of freshwater fish, Lefua echigonia)
台湾泥鰌[taiwandojou] blotched snakehead (species of fish, Channa maculata)
柳の下に何時も泥鰌は居ない[yanaginoshitaniitsumodojouhainai] Good luck does not always repeat itself

味女泥鰌[ajimedojou] Niwaella delicata (species of loach)
石鰌[ishidojou] Cobitis takatsuensis (species of loach)
縞泥鰌[shimadojou] Japanese striped loach (Cobitis biwae)