Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “speed (sth) up”

See all translations

speed (sth) up

verb [I or T, usually + adv/prep] uk phrasal verb with speed   /spiːd/ (sped or speeded, sped or speeded) us  
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).
(Definition of speed (sth) up from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of speed (sth) up?
Add Cambridge dictionaries to your browser to your website

Definitions of “speed (sth) up” in other dictionaries

Word of the Day

luck

the force that causes things, especially good things, to happen to you by chance and not as a result of your own efforts or abilities

Word of the Day

A certain je ne sais quoi: French words and phrases used in English

by Liz Walter,
January 21, 2015
It is an odd irony that the more sophisticated your use of English is, the more likely you are to use French words and phrases. Or, to be more accurate, ones you know to be French – words such as ballet, au pair, abattoir, fiancé, café, and restaurant are so entrenched in

Read More 

micro pig noun

January 26, 2015
an extremely small pig, bred to be a pet Micro pigs have become popular pets recently, with famous owners including Victoria Beckham, Paris Hilton and Olympic diver, Tom Daley.

Read More