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English definition of “speed”

speed

verb     /spiːd/ (past tense and past participle sped, speeded)
speed along/down/past, etc to move somewhere or happen very fast: The three men jumped into a car and sped away.Increasing and decreasing speed of motion
be speeding to be driving faster than you are allowed toDriving and operating road vehicles
(Definition of speed verb from the Cambridge Learner's Dictionary © Cambridge University Press)

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