investigation Definition

the process of carrying out a systematic or formal inquiry to discover and examine the facts of an incident, allegation, or mystery.

Using investigation: Examples

Take a moment to familiarize yourself with how "investigation" can be used in various situations through the following examples!

  • Example

    The police launched an investigation into the robbery.

  • Example

    The committee conducted an investigation into the allegations of corruption.

  • Example

    The journalist's investigation uncovered a major scandal.

  • Example

    The company hired a private investigator to conduct an investigation into the employee's misconduct.

investigation Synonyms and Antonyms

Antonyms for investigation

Idioms Using investigation

  • used to convey that rumors or accusations are often based on some degree of truth


    There must be some truth to the allegations if the police have launched an investigation. No smoke without fire.

  • to make every possible effort to find or achieve something


    The detective left no stone unturned in his investigation of the crime.

  • to discover the truth about something


    The journalist was determined to get to the bottom of the corruption scandal and conducted a thorough investigation.

Phrases with investigation

  • being investigated or examined


    The cause of the fire is still under investigation.

  • an inquiry or examination into something


    The government has ordered an investigation into the safety of the new vaccine.

  • a detailed examination or study of something


    The investigation of the crime scene revealed important clues.

Origins of investigation

from Latin 'investigatio', meaning 'a searching into'


Summary: investigation in Brief

The term 'investigation' [ɪnˌvɛstɪˈɡeɪʃən] refers to the process of systematically discovering and examining the facts of an incident, allegation, or mystery. It involves inquiries, examinations, probes, explorations, and scrutinies, as exemplified by 'The police launched an investigation into the robbery.' 'Investigation' extends into phrases like 'under investigation,' and idioms like 'no smoke without fire,' implying that rumors or accusations are often based on some degree of truth.

How do native speakers use this expression?