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

"start up (something)" in American English

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start up (something)

phrasal verb with start us /stɑrt/ verb


to cause an engine to begin to operate:

I didn't even hear the vacuum cleaner start up when Jose began cleaning the carpets.
He heard the stranger start up a motorcycle.

start up something

phrasal verb with start us /stɑrt/ verb


to begin a new company, organization, or activity:

We started up an opera theater company that toured all over the South.

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