234 entries under investigate topic. ×

1
set eyes on(expression, idiom, examine, seek)
1
shovel(verb, action, turn, produce, clean)
1
smell around(verb, expression, check, examine, look)
1
spade(verb, action, turn, produce, clean)
1
speculate(examine, try, test, analyze)
1
spot(examine, seek, search, inspect)
1
superintend(verb, study, check, observe, examine)
1
supervise(verb, study, check, observe, examine)
1
take in(expression, examine, seek, search)
1
take stock of(expression, idiom, study, check, consider)
1
test the waters(verb, expression, idiom, examine)
1
trowel(action, dig, research, burrow)
1
try on(verb, expression, examine, try, test)
1
try on for size(expression, idiom, examine, try, test)
1
try out(verb, expression, phrasal verb, taste, fit)
1
turn upside down(verb, expression, idiom, check, examine)
1
venture(examine, try, test, trial)
1
watch(verb, study, check, consider, observe)
0
X-ray(noun, verb, study, examine)
0
action(dig, research, burrow, inquire)
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APASmart Define. (2016). probe thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/probe/thesaurus/synonyms
ChicagoSmart Define. 2016. "probe thesaurus" https://smartdefine.org/probe/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, probe thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/probe/thesaurus/synonyms>.
MLASmart Define. "probe thesaurus" 27 March 2016. Web. 29 September 2026. <https://smartdefine.org/probe/thesaurus/synonyms>