549 entries under verb topic. ×

6
enquire into
6
experiment(study, check, taste, examine)
6
quiz(study, check, correct, examine)
6
sound(examine, seize, test, survey)
5
look at(expression, phrasal verb, study, check)
5
case(study, check, consider, correct)
5
check up(expression, phrasal verb, study, check)
5
comb(study, check, separate, consider)
5
contemplate(study, check, consider, favor)
5
determine(study, get, disease, observe)
5
dig into(expression, study, check, separate)
5
follow up(action, movement, follow, pursue)
5
poke(study, check, examine, dig)
5
query(get, dispute, provoke, examine)
5
ransack(action, check, turn, follow)
5
read(study, check, consider, observe)
5
reconnoiter(study, check, consider, observe)
5
verify(check, correct, examine, review)
4
ask(examine, request, question, test)
4
spy(study, check, consider, sound)
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APASmart Define. (2016). investigate thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/investigate/thesaurus/synonyms
ChicagoSmart Define. 2016. "investigate thesaurus" https://smartdefine.org/investigate/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, investigate thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/investigate/thesaurus/synonyms>.
MLASmart Define. "investigate thesaurus" 17 February 2016. Web. 29 September 2026. <https://smartdefine.org/investigate/thesaurus/synonyms>