Definition of “investigation” - English Dictionary

“investigation” in English

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investigationnoun [ C or U ]

uk /ɪnˌves.tɪˈɡeɪ.ʃən/ us /ɪnˌves.təˈɡeɪ.ʃən/

B2 the act or process of examining a crime, problem, statement, etc. carefully, especially to discover the truth:

An investigation has been under way for several days into the disappearance of a 13-year-old boy.
a full/thorough investigation of the incident
Currently, the individuals who might have caused the accident are subject to/under investigation.

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(Definition of “investigation” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“investigation” in American English

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investigationnoun [ C/U ]

us /ɪnˌves·tɪˈɡeɪ·ʃən/

the act of examining something carefully, esp. to discover the truth about it:

[ C ] a criminal investigation
[ U ] The cause of the fire is under investigation (= is being examined).

(Definition of “investigation” from the Cambridge Academic Content Dictionary © Cambridge University Press)

“investigation” in Business English

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investigationnoun [ C or U ]

uk /ɪnˌvestɪˈɡeɪʃən/ us

the careful examination of a crime, problem, statement, etc., especially to discover the truth:

an investigation into sth An investigation into possible insider dealing has been begun by the stock exchange.
the investigation of sth The investigation of the theft of a state data backup device last month continues.
The Financial Services Authority launched an investigation.
criminal/civil/internal investigation
be under investigation (for sth) Several companies are under investigation for fraud.
The Justice Department is conducting investigations of alleged price-fixing at the company.
continuing/ongoing investigation

(Definition of “investigation” from the Cambridge Business English Dictionary © Cambridge University Press)