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English definition of “start (sth) up”

start (sth) up

verb uk phrasal verb with start   /stɑːt/ us    /stɑːrt/

(BUSINESS)

If a business or other organization starts up, or if someone starts one up, it is created and starts to operate: Many small businesses started up in the 1980s to cater to this growing market. We ought to start up a drama group.

(ENGINE)

If a vehicle or engine starts up, or someone starts it up, it starts to work: The car wouldn't start up this morning.
(Definition of start (sth) up from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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