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investigation

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noun [countable/uncountable] investigation pronunciation in British English /ɪnˌvestɪˈɡeɪʃ(ə)n/ 
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singularinvestigation
pluralinvestigations

Related dictionary definitions

  1. the process of trying to find out all the details or facts about something in order to discover who or what caused it or how it happened

    There were no new suspects in the murder, but the investigation is continuing.

    investigation of/into:

    the investigation into the crash of Flight 803

    be under investigation:

    She is still under investigation (=being investigated) by the Spanish police.

creep

used with other nouns to describe the unexpected and often unwanted effects of a particular situation or trend

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