Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

speed (sth) up

phrasal verb with speed
 
 
/spiːd/ verb [I or T, usually + adv/prep] (sped or speeded, sped or speeded)

Definition

to happen or move faster, or to make something happen or move faster: This drug may have the effect of speeding up your heart rate. Can the job be speeded up in some way? The tape speeded up towards the end. I think you need to speed up a bit (= drive faster) - we're going to be late. The economy shows signs of speeding up (= increasing activity).Increasing and decreasing speed of motion
(Definition of speed (sth) up from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of speed (sth) up

Browse related topics

You are looking at an entry to do with Increasing and decreasing speed of motion, but you might be interested in these topics from the Movement and location topic area: