any entity that produces an effect or is responsible for events or results | motor that converts thermal energy to mechanical work |
a comprehensive term for any proceeding in a court of law whereby an individual seeks a legal remedy | a wheeled vehicle consisting of a self-propelled engine that is used to draw trains along railway tracks |
a series of actions advancing a principle or tending toward a particular end | an instrument or machine that is used in warfare, such as a battering ram, catapult, artillery piece, etc. |
a justification for something existing or happening | something used to achieve a purpose |
events that provide the generative force that is the origin of something | |