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English definition of “ignition”

ignition

noun     /ɪɡˈnɪʃ.ən/
[C usually singular] the electrical system in an engine that causes the fuel to burn or explode in order to start the engine : Switch / Turn the ignition on. an ignition key The engine and engine partsEngines and motors [U] formal the act or process of something starting to burn Starting fires
(Definition of ignition noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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