S: (n) internal-combustion engine, ICE (a heat engine in which combustion occurs inside the engine rather than in a separate furnace; heat expands a gas that either moves a piston or turns a gas turbine)
S: (n) ice rink, ice-skating rink, ice (a rink with a floor of ice for ice hockey or ice skating) "the crowd applauded when she skated out onto the ice"