133 entries under investigate topic. ×
| figure(verb, view, examine, survey) | |
| follow a line of investigation(verb, expression, idiom, study) | |
| have a look at(verb, expression, idiom, inspect) | |
| make inquiries(verb, expression, study) | |
| notice(noun, verb, check, examine) | |
| penetrate | |
| pierce | |
| prod | |
| put out a feeler(expression, idiom, delve) | |
| sort out(verb, expression, view, examine) | |
| sound | |
| sound out(expression, delve) | |
| take a look at(verb, expression, idiom, inspect) |
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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> |