Did you know?

Click any word in a definition or example to find the entry for that word

investigation

 - definition
 
 
 
Close

What are red words?

90% of the time, speakers of English use just 7,500 words in speech and writing. These words appear in red, and are graded with stars. One-star words are frequent, two-star words are more frequent, and three-star words are the most frequent.

Close

Thesaurus

The thesaurus of synonyms and related words is fully integrated into the dictionary entries. Click on the T button in an entry to review the synonyms and related words for that meaning.

more
noun [countable/uncountable] investigation pronunciation in American English /ɪnˌvestɪˈɡeɪʃ(ə)n/ 
Word Forms
Close
singularinvestigation
pluralinvestigations

Related dictionary definitions

  1. the process of trying to find out all the details or facts about something in order to learn 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.

sandwich generation

a generation … who are balancing working life with caring for both their teenage children and elderly parents

BuzzWord Article

Open Dictionary

dish

to gossip or share personal information with someone …

add a word

Blog

A must for anyone with an interest in the changing face of language. The Macmillan Dictionary blog explores English as it is spoken around the world today.

global English and language change from our blog