Investigation
Investigation noun - A systematic search for the truth or facts about something.
Show all Definitions
Synonyms for Investigation
Preliminary investigation and investigation are semantically related. In some cases you can use "Preliminary investigation" instead a noun "Investigation".
Preliminary investigation
Investigation and preliminary investigation are semantically related. You can use "Investigation" instead a noun "Preliminary investigation".
Mutual synonyms
Cite this Source
Preliminary investigation and Investigation. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/investigation/preliminary_investigation
Investigation & Preliminary investigation. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/investigation/preliminary_investigation>.
Preliminary investigation or Investigation. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/investigation/preliminary_investigation.
Google Ngram Viewer shows how "investigation" and "preliminary investigation" have occurred on timeline