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English definition of “establish”

establish

verb uk   /ɪˈstæb.lɪʃ/ us  

establish verb (START)

B2 [T often passive] to start a company or organization that will continue for a long time: The brewery was established in 1822. These methods of working were established in the last century. C1 [T often passive] to start having a relationship with, or communicating with another person, company, country, or organization: There is a strong need to establish effective communication links between staff, parents, pupils, and external bodies.

establish verb (ACCEPT)

C1 [T] to cause something to be accepted in or familiar with a place, position, etc.: His reputation for carelessness was established long before the latest problems arose. He's established himself as a dependable source of information. After three months we were well established in/at our new house/new jobs. establish yourself C1 formal to be in a successful position over a long period of time: He has established himself as the leading candidate in the election.

establish verb (DISCOVER)

C2 [T] formal to discover or get proof of something: Before we take any action we must establish the facts/truth. [+ question word] Can you establish what time she left home/whether she has left home. [+ (that)] We have established (that) she was born in 1900.
(Definition of establish from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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