Investigation
Investigation noun - A systematic search for the truth or facts about something.
Usage example: officials launched an extensive investigation of the plane crash
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Synonyms for Investigation
Probe is a synonym for investigation in investigate topic. In some cases you can use "Probe" instead a noun "Investigation", when it comes to topics like research, examination, reconnoitering, thorough check. popular alternative
Probe
Probe noun - A systematic search for the truth or facts about something.
Usage example: a congressional probe into the accusations
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Synonyms for Probe
Investigation is a synonym for probe in investigate topic. You can use "Investigation" instead a noun "Probe", if it concerns topics such as research, reconnoitering. popular alternative
Mutual synonyms
How words are described
Both words in one sentence
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A probe into a possible sabotage turns Mark into a whistleblower for the FBI, as part of a multi-year investigation into worldwide price fixing.
Source: Film / The Informant
Cite this Source
Probe and Investigation. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/investigation/probe
Investigation & Probe. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/investigation/probe>.
Probe or Investigation. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/investigation/probe.
Google Ngram Viewer shows how "investigation" and "probe" have occurred on timeline