Meaning of “engine” - Learner’s Dictionary

engine

noun [ C ] us uk /ˈendʒɪn/
Extra Examples
the roar of a jet engineStart up the engine.He revved the engine noisily.The engine is running more smoothly now.Shortly after take-off the plane developed engine trouble.
MACHINE

A2 the part of a vehicle that uses energy from oil, electricity, or steam to make it move:

a diesel engine
Please turn your engine off while waiting in the queue.
TRAIN

the part of a train that pulls it along

→ See also fire engine , search engine

(Definition of “engine” from the Cambridge Learner’s Dictionary © Cambridge University Press)