197 entries under investigate topic. ×

1
penetrate(verb, check, consider, examine, look)
1
pick at(verb, expression, check, consider, observe)
1
pierce(verb, check, consider, examine, look)
1
poke(consider, examine, question, inspect)
1
poke into(verb, expression, check, examine, look)
1
practice with(expression, examine, try, test)
1
query(examine, review, request, ask)
1
rake(verb, check, examine, look, seek)
1
ransack(verb, check, examine, look, seek)
1
rehash(verb, change, cut, develop, consider)
1
rifle through(verb, expression, check, examine, look)
1
roast(verb, examine, censure, request, question)
1
root(verb, check, examine, look, seek)
1
rummage(noun, verb, check, examine, look)
1
sample(examine, try, test, analyze)
1
scour(verb, check, examine, look, flash)
1
search into(verb, expression, check, consider, see)
1
separate(verb, consider, oppose, examine, measure)
1
smell around(verb, expression, check, examine, look)
1
sort out(verb, expression, phrasal verb, consider, see)
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APASmart Define. (2016). study thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/study/thesaurus/synonyms
ChicagoSmart Define. 2016. "study thesaurus" https://smartdefine.org/study/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, study thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/study/thesaurus/synonyms>.
MLASmart Define. "study thesaurus" 31 March 2016. Web. 25 September 2026. <https://smartdefine.org/study/thesaurus/synonyms>