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English definition of “act as sth”

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act as sth

phrasal verb with act
 
 
/ækt/ verb [I]
to do a particular job, especially one that you do not normally do: She has been asked to act as a negotiator on behalf of the factory.
to have a particular effect: The launch of the new investment trust will act as a support for this market.
(Definition of act as sth from the Cambridge Business English Dictionary © Cambridge University Press)
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