197 entries under investigate topic. ×

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dissolve(verb, examine, scrutinize, evaluate)
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do tests
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electrolyze(verb, examine, scrutinize, evaluate)
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feel around(expression, dig, explore, research)
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follow a line of investigation(expression, idiom)
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give a going-over(verb, idiom, look)
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give something the once-over(verb, expression, idiom, check, examine)
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hydrolyze(verb, examine, scrutinize, evaluate)
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lay bare(verb, expression, examine, scrutinize)
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look up
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part(verb, examine, scrutinize, evaluate)
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prod(dig, explore, research, delve)
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put out a feeler(expression, idiom, dig, explore)
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read up on(expression, idiom)
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solicit(verb, run, agitate, test)
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sound out(expression, dig, explore, research)
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try for size(expression, idiom, examine, analyze)
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APASmart Define. (2016). study thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/study/thesaurus/synonyms
ChicagoSmart Define. 2016. "study thesaurus" https://smartdefine.org/study/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, study thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/study/thesaurus/synonyms>.
MLASmart Define. "study thesaurus" 31 March 2016. Web. 25 September 2026. <https://smartdefine.org/study/thesaurus/synonyms>