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1. Dictionary

   In·ves·ti·ga·tion

   /inˌvestəˈɡāSH(ə)n/

   

   noun

   • 1. the action of investigating something or someone; formal or systematic examination or research: "he is under investigation for receiving illicit funds"
   • ▪ a formal inquiry or systematic study: "an investigation has been launched into the potential impact of the oil spill"

   Word Origin late Middle English: from Latin investigatio(n-), from the verb investigare (see investigate).

   Scrabble Points: 17

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2. dictionary.cambridge.org › us › dictionaryINVESTIGATION definition | Cambridge English Dictionary

   dictionary.cambridge.org › us › dictionary

   • Cached

   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.

3. www.vocabulary.com › dictionary › InvestigationInvestigation - Definition, Meaning & Synonyms | Vocabulary.com

   www.vocabulary.com › dictionary › Investigation

   Definitions of investigation. noun. an inquiry into unfamiliar or questionable activities. synonyms: probe. see more. noun. the work of inquiring into something thoroughly and systematically. synonyms: investigating. see more. Pronunciation. US. /ɪnˈvɛstəˌgeɪʃən/ UK. /ɪnvɛstɪˈgeɪʃən/ Cite this entry. Style: MLA. "Investigation."

4. www.oxfordlearnersdictionaries.com › definition › englishinvestigation noun - Definition, pictures, pronunciation and...

   www.oxfordlearnersdictionaries.com › definition › english

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   a scientific or academic examination of the facts of a subject or problem synonym enquiry. Further investigation revealed a flaw in this theory. Refer patients with these symptoms for further investigation. investigation into something the results of a preliminary investigation into stress at work.

5. www.collinsdictionary.com › dictionary › englishINVESTIGATION definition and meaning | Collins English Dictionary

   www.collinsdictionary.com › dictionary › english

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   3 days ago · investigation, examination, inquiry, research express the idea of an active effort to find out something. An investigation is a systematic, minute, and thorough attempt to learn the facts about something complex or hidden; it is often formal and official: an investigation of a bank failure.

6. dictionary.cambridge.org › dictionary › learner-englishINVESTIGATION | meaning - Cambridge Learner's Dictionary

   dictionary.cambridge.org › dictionary › learner-english

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   a process in which officials try to discover all the facts about something, especially a crime or an accident: Police have begun an investigation into his death. The cause of the fire is still under investigation (= being investigated). (Definition of investigation from the Cambridge Learner's Dictionary © Cambridge University Press)

7. www.oxfordlearnersdictionaries.com › us › definitioninvestigation noun - Definition, pictures, pronunciation and...

   www.oxfordlearnersdictionaries.com › us › definition

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   investigation (into something) a scientific or academic examination of the facts of a subject or problem synonym inquiry, investigate an investigation into the spending habits of teenagers. See investigation in the Oxford Advanced Learner's Dictionary. Check pronunciation: investigation.

8. www.ldoceonline.com › dictionary › investigationinvestigation | meaning of investigation in Longman Dictionary of...

   www.ldoceonline.com › dictionary › investigation

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   investigation meaning, definition, what is investigation: an official attempt to find out the trut...: Learn more.