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English definition of “speed”

speed

noun
 
 
/spiːd/
HOW FAST [C, U] B1 how fast something moves or happens: high/low speed He was travelling at a speed of 90 mph.Speed of motion
FAST MOVEMENT [U] B2 very fast movement: He put on a sudden burst of speed.Speed of motion
(Definition of speed noun from the Cambridge Learners Dictionary © Cambridge University Press)
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