2
criticize(verb, study, check, consider, observe)
2
cross(verb, get, dispute, provoke, demand)
2
cross-examination
2
dare(verb, get, oppose, fight, dispute)
2
deal with(verb, expression, study, favor, regard)
2
defy(verb, get, oppose, fight, dispute)
2
deliberate(verb, favor, regard, view, examine)
2
demand(verb, get, dispute, provoke, challenge)
2
denounce(verb, get, oppose, fight, dispute)
2
detect(verb, spot, identify)
2
discover(verb, study, get, determine, turn)
2
enquire about(verb, expression, study, correct, examine)
2
exact(verb, get, dispute, provoke, try)
2
experiment with(verb, expression, check, taste, examine)
2
eyeball(verb, study, check, consider, see)
2
face down(expression, get, dispute, provoke, try)
2
face off(expression, get, oppose, fight, dispute)
2
fan(verb, follow, pursue, seek, chase)
2
ferret(verb, check, sound, examine, look)
2
ferret out(verb, expression, action, follow, examine)
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APASmart Define. (2016). investigate thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/investigate/thesaurus/synonyms
ChicagoSmart Define. 2016. "investigate thesaurus" https://smartdefine.org/investigate/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, investigate thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/investigate/thesaurus/synonyms>.
MLASmart Define. "investigate thesaurus" 17 February 2016. Web. 27 September 2026. <https://smartdefine.org/investigate/thesaurus/synonyms>