56 entries under investigation topic. ×

17
inquiry(noun, study, order, check, view)
15
probe(noun, study, check, review, question)
14
examination(noun, study, order, check, view)
12
inquisition(noun, study, order, check, view)
12
inspection(noun, study, order, check, view)
12
research(noun, study, order, check, view)
10
exploration(noun, study, order, check, view)
8
quest(noun, study, order, check, view)
8
analysis(noun, study, order, check, view)
8
test(noun, study, check, review, judgment)
7
scrutiny(noun, study, order, check, view)
7
trial(noun, study, check, review, approval)
5
hearing(noun, study, review, case, search)
4
autopsy(noun, review, inquiry)
4
delving(noun, study, review, case, search)
4
experiment(noun, study, check, review, approval)
4
probing(noun, study, order, check, view)
4
question(noun, review, request, question)
3
review(noun, study, order, check, view)
2
poll(noun, review, request, question)
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APASmart Define. (2015). inquest thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/inquest/thesaurus/synonyms
ChicagoSmart Define. 2015. "inquest thesaurus" https://smartdefine.org/inquest/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, inquest thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/inquest/thesaurus/synonyms>.
MLASmart Define. "inquest thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/inquest/thesaurus/synonyms>