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English definition of “speed (sth) up”

speed (sth) up

phrasal verb with speed     /spiːd/ verb (past tense and past participle sped, speeded)
to move or happen faster , or to make something move or happen faster : Can you try to speed up a bit please ?Increasing and decreasing speed of motion
(Definition of speed (sth) up from the Cambridge Learner's Dictionary © Cambridge University Press)

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