definition
A large construction used in warfare, such as a battering ram, catapult etc.
definition
A tool; a utensil or implement.
definition
A complex mechanical device which converts energy into useful motion or physical effects.
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A person or group of people which influence a larger group; a driving force.
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The part of a car or other vehicle which provides the force for motion, now especially one powered by internal combustion.
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A self-powered vehicle, especially a locomotive, used for pulling cars along a track.
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A software or hardware system responsible for a specific technical task (usually with qualifying word).
example
a graphics engine
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Ingenuity; cunning, trickery, guile.
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The result of cunning; something ingenious, a contrivance; (in negative senses) a plot, a scheme.
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Natural talent; genius.
definition
Anything used to effect a purpose; any device or contrivance; an agent.