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English definition of “accelerate”

accelerate

verb uk   /əkˈsel.ə.reɪt/ us    /-ɚ.eɪt/
C2 [I] When a vehicle or its driver accelerates, the speed of the vehicle increases: I accelerated to overtake the bus.
Opposite
C2 [I] If a person or object accelerates, he, she, or it goes faster. C1 [I or T] to happen or make something happen sooner or faster: Inflation is likely to accelerate this year, adding further upward pressure on interest rates. They use special chemicals to accelerate the growth of crops.
(Definition of accelerate from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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