| contemplation(noun, study, class, exercise, subject) | |
| council(trial, government, inquiry) | |
| course(noun, study, class, exercise, subject) | |
| cramming(noun, study, class, exercise, subject) | |
| critique(noun, analysis) | |
| debating | |
| department of investigation(expression, idiom) | |
| detective work | |
| determination(noun, experiment) | |
| diagnostic | |
| dialectic | |
| dialogue | |
| division(noun, study, review, examination) | |
| dry run(noun, expression, study, check, measure) | |
| eagerness(noun, regard, concern, interest, understand) | |
| eagle eye(noun, expression, study, review, watch) | |
| education(noun, study, exercise, government, training) | |
| enterprise(noun, study, cheat, speed, measure) | |
| enumeration | |
| essay(noun, study, change, check, notice) |
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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> |