| exchange of views(expression, idiom) | |
| exercise(noun, study, measure, class, subject) | |
| exhaustive study | |
| expedition(noun, journey, cheat, speed, ripoff) | |
| experience(noun, struggle, examination, test, effort) | |
| exploitation | |
| eye(study, check, review, search, test) | |
| fathom | |
| final(noun, study, check, review, approval) | |
| fishing expedition(expression, study, review, examination, hunt) | |
| fling(noun, study, check, measure, struggle) | |
| following(search, race, chase, scrutiny, shadowing) | |
| forum | |
| frisking(search, examination, race, chase, hunt) | |
| game(search, test, race, chase, puzzle) | |
| gander(noun, check) | |
| go(noun, check, struggle, approval, examination) | |
| going-over(noun, check, review, examination, analysis) | |
| grilling(noun, study, check, review, test) | |
| inquiries |
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| APA | Smart Define. (2015). investigation thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/investigation/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "investigation thesaurus" https://smartdefine.org/investigation/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, investigation thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/investigation/thesaurus/synonyms>. |
| MLA | Smart Define. "investigation thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/investigation/thesaurus/synonyms> |