Meaning of “engine” - Learner’s Dictionary

engine

noun [ C ] uk us /ˈendʒɪn/
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)