133 entries under investigate topic. ×
| observe(verb, study, check, examine, review) | |
| oversee(verb, study, check, observe, examine) | |
| ponder(verb, study, check, consider, criticize) | |
| practice with(expression, examine, try, test) | |
| read up on(verb, expression, idiom, study, examine) | |
| shovel(action, dig, probe, burrow) | |
| spade(action, dig, probe, burrow) | |
| speculate(examine, try, test, analyze) | |
| spy(verb, study, consider, examine, review) | |
| superintend(verb, study, check, observe, examine) | |
| supervise(verb, study, check, observe, examine) | |
| test the waters(verb, expression, idiom, study, check) | |
| trowel(action, dig, probe, burrow) | |
| try for size(expression, idiom, examine, analyze) | |
| try on(expression, examine, try, test) | |
| try on for size(expression, idiom, examine, try, test) | |
| turn inside out(verb, expression, idiom, action, examine) | |
| venture(examine, try, test, trial) | |
| catechize | |
| feel around(expression, delve) |
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| APA | Smart Define. (2015). research thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/research/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "research thesaurus" https://smartdefine.org/research/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2015, research thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/research/thesaurus/synonyms>. |
| MLA | Smart Define. "research thesaurus" 10 April 2015. Web. 30 September 2026. <https://smartdefine.org/research/thesaurus/synonyms> |