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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 Learners Dictionary © Cambridge University Press)
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