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English definition of “engine”

engine

noun [C] uk   /ˈen.dʒɪn/ us  
A2 a machine that uses the energy from liquid fuel or steam to produce movement: a jet engine a car engine My car's been having engine trouble recently. (also locomotive) the part of a railway train that pulls it along something that provides power, often economic power, for other things: For much of the 19th century Britain was the workshop of the world and the engine of economic growth.
(Definition of engine from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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