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Word

investigator

noun C1
UK /ɪnˈvɛs.tɪˌɡeɪ̯.təː/
US /ɪnˈvɛs.tɪˌɡeɪ̯.tɚ/

Meanings

noun

A person who examines a case or problem to discover the facts, especially by collecting and analyzing evidence.

investigator: A person who examines a case or problem to discover the facts, especially by collecting and analyzing evidence.
noun

A person who researches and verifies information in a professional context, such as journalism or internal workplace reviews.

investigator: A person who researches and verifies information in a professional context, such as journalism or internal wor…

Definition

An investigator is a person who gathers facts and evidence to find out what happened or what is true.

An investigator is someone whose job is to examine a situation carefully and uncover the facts. They collect information by interviewing people, checking records, and analyzing evidence. Investigators work in many fields, including police work, journalism, and workplace compliance, with the aim of producing a clear, supported conclusion.

Examples

  • The investigator interviewed several witnesses and compared their accounts for inconsistencies.
  • As the lead investigator, she insisted on documenting every step before drawing conclusions.
  • I spoke with the investigator after the meeting to clarify what I had observed.
  • They hired an independent investigator to review the allegations and report the findings.

Common mistake

Learners often confuse investigator (the person) with investigation (the process) and use the wrong word in a sentence.