investigate Meaning in the Cambridge English Dictionary
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Meaning of “investigate” in the English Dictionary

"investigate" in British English

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investigateverb [T]

uk   us   /ɪnˈves.tɪ.ɡeɪt/
B2 to ​examine a ​crime, ​problem, ​statement, etc. ​carefully, ​especially to ​discover the ​truth: Police are investigating ​allegations of ​corruptioninvolvingseniorexecutives. [+ question word] We are of ​course investigating how an ​error like this could have ​occurred.
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(Definition of investigate from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"investigate" in American English

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investigateverb [I/T]

 us   /ɪnˈves·tɪˌɡeɪt/
to ​examine something ​carefully, esp. to ​discover the ​truth about it: [I] There was a ​suspicious man near the ​playground, and we ​asked the ​police to investigate. [T] The ​schoolcreated an ​independentreviewboard to investigate ​charges of ​misconduct.
investigator
noun [C]  us   /ɪnˈves·tɪˌɡeɪ·t̬ər/
She ​hired a ​private investigator to ​check into her husband’s ​activities.
(Definition of investigate from the Cambridge Academic Content Dictionary © Cambridge University Press)

"investigate" in Business English

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investigateverb

uk   us   /ɪnˈvestɪɡeɪt/
[I or T] to ​examine a ​crime, problem, ​statement, etc. carefully, especially to discover the truth: The FBI was called in to investigate. Detectives will continue to investigate the incident.investigate allegations/claims/complaints of sth The ​office is investigating the ​allegations of ​embezzlement.investigate how/whether/why The ​commission will investigate whether these ​companiesviolated anti-trust ​laws.
[T] to ​try to discover the truth about someone who is ​accused of a ​crime: investigate sb for sth The ​IRS are investigating Williams for ​allegedtaxfraud.
investigator
noun [C]
Investigators discovered that the ​bank had ​covered up ​massivebadloans.
(Definition of investigate from the Cambridge Business English Dictionary © Cambridge University Press)
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