161 entries under noun topic. ×

3
legwork(study, check, review, test)
3
probation
3
radar(search, tool, apparatus, locator)
3
request(verb, study, check, review)
3
syringe
3
trial(study, check, try, test)
3
trial balloon(expression, idiom, advance, review)
3
verification
2
delving(study, review, case, search)
2
demand(verb, request, question, query)
2
detection(review, conclusion, inspection, scrutiny)
2
fishing expedition(expression, study, review, search)
2
lance(verb, cut, enter, stab)
2
proof
2
appeal(verb, request)
2
auger
2
awl
2
benchmark(verb, experiment)
2
bid(verb, request)
2
borer
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APASmart Define. (2016). probe thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/probe/thesaurus/synonyms
ChicagoSmart Define. 2016. "probe thesaurus" https://smartdefine.org/probe/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, probe thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/probe/thesaurus/synonyms>.
MLASmart Define. "probe thesaurus" 27 March 2016. Web. 27 September 2026. <https://smartdefine.org/probe/thesaurus/synonyms>