Meaning of “speed up (something)” in the English Dictionary

american-english dictionary

"speed up (something)" in American English

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speed up (something)

phrasal verb with speed us /spid/ verb [ I/T ] past tense and past participle sped /sped/ speeded

to go or happen faster, or to cause something to happen faster:

The car suddenly sped up and went through a red light.
He developed a new system to help speed up the work.

(Definition of “speed up (something)” from the Cambridge Academic Content Dictionary © Cambridge University Press)