140 entries under test topic. ×

2
scrutinate(verb, study, check, consider, observe)
2
search into(expression, study, check, consider, observe)
2
shake down(verb, expression, check, sound, examine)
2
solicit(verb, run, provoke, examine, challenge)
2
sound out(verb, expression, examine, challenge, question)
2
sweep(verb, study, check, consider, observe)
2
take stock of(expression, idiom, study, check, consider)
2
try out(expression, check, taste, examine, try)
2
turn over(expression, study, check, consider, turn)
2
work over(verb, expression, examine, challenge, question)
1
vet(verb, study, check, consider, observe)
1
eye(verb, study, check, consider, observe)
1
view(verb, study, check, consider, determine)
1
weigh(verb, study, get, check, consider)
1
balance account(verb, expression, study, correct, examine)
1
beat a dead horse(verb, expression, idiom, study, consider)
1
confab(verb, study, consider, resolve, examine)
1
correct(verb, study, consider, examine, try)
1
diagnose(verb, disease, spot, examine, try)
1
estimate(verb, study, consider, resolve, examine)
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APASmart Define. (2016). investigate thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/investigate/thesaurus/synonyms
ChicagoSmart Define. 2016. "investigate thesaurus" https://smartdefine.org/investigate/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, investigate thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/investigate/thesaurus/synonyms>.
MLASmart Define. "investigate thesaurus" 17 February 2016. Web. 28 September 2026. <https://smartdefine.org/investigate/thesaurus/synonyms>