111 entries under investigate topic. ×

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X-ray(verb, study, examine, scrutinize)
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anatomize(verb, study, examine, scrutinize)
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beat a dead horse(verb, expression, idiom, study, examine)
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break up(verb, expression, study, examine)
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chew over(verb, expression, study, check, examine)
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cut up(verb, expression, study, examine)
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decompose(verb, study, examine, scrutinize)
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decompound(verb, study, examine, scrutinize)
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determine(verb, study, examine, scrutinize)
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disintegrate(verb, study, examine, scrutinize)
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dissect(verb, study, examine, scrutinize)
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dissolve(verb, study, examine, scrutinize)
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divide(verb, study, examine, scrutinize)
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electrolyze(verb, study, examine, scrutinize)
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estimate(verb, study, examine, scrutinize)
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figure(verb, study, examine, scrutinize)
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figure out(verb, expression, study, examine)
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get down to brass tacks(verb, expression, idiom, study, examine)
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give something the once-over(verb, expression, idiom, study, check)
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hash(verb, study, examine, scrutinize)
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APASmart Define. (2016). question thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/question/thesaurus/synonyms
ChicagoSmart Define. 2016. "question thesaurus" https://smartdefine.org/question/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, question thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/question/thesaurus/synonyms>.
MLASmart Define. "question thesaurus" 8 March 2016. Web. 28 September 2026. <https://smartdefine.org/question/thesaurus/synonyms>