140 entries under test topic. ×

2
candle(study, check, consider, correct, examine)
2
chew over(expression, study, check, consider, favor)
2
confirm(verb, check, consider, correct, examine)
2
count(noun, verb, study, consider, correct)
2
criticize(verb, study, check, consider, observe)
2
enquire about(verb, expression, study, correct, examine)
2
experiment with(verb, expression, check, taste, examine)
2
eyeball(verb, study, check, consider, see)
2
interview(verb, examine, challenge, question, seek)
2
look see(expression, study, check, consider, correct)
2
overlook(verb, study, check, consider, correct)
2
penetrate(verb, study, check, consider, turn)
2
pierce(verb, study, check, consider, turn)
2
ponder(verb, study, get, check, consider)
2
prod(verb, examine, survey, dig)
2
put through the wringer(verb, expression, idiom, examine, challenge)
2
put to the test(verb, expression, idiom, study, check)
2
roast(verb, examine, challenge, demand, request)
2
scope(verb, study, check, consider, observe)
2
screen(verb, study, check, separate, consider)
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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>