93 entries under investigate topic. ×

1
criticize(verb, study, check, consider, observe)
1
eye(verb, study, check, consider, observe)
1
ferret(verb, check, examine, look, seek)
1
go in quest of(verb, expression, idiom, check, examine)
1
go over with a fine-tooth comb(verb, expression, idiom, check, examine)
1
gun(verb, study, check, consider, observe)
1
gun for(verb, expression, check, examine, look)
1
hunt for(verb, expression, check, examine, look)
1
interrogate(verb, study, check, consider, examine)
1
leave no stone unturned(verb, expression, idiom, check, examine)
1
look(verb, check, examine, seek)
1
look for(verb, expression, check, examine, look)
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look high and low(verb, expression, idiom, check, examine)
1
parse(verb, study, check, consider, observe)
1
peruse(verb, study, check, consider, observe)
1
poke into(verb, expression, check, examine, look)
1
ponder(verb, study, check, consider, observe)
1
question(verb, study, check, consider, examine)
1
rake(verb, check, examine, look, seek)
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ransack(verb, check, examine, look, seek)
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APASmart Define. (2016). frisk thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/frisk/thesaurus/synonyms
ChicagoSmart Define. 2016. "frisk thesaurus" https://smartdefine.org/frisk/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, frisk thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/frisk/thesaurus/synonyms>.
MLASmart Define. "frisk thesaurus" 26 February 2016. Web. 30 September 2026. <https://smartdefine.org/frisk/thesaurus/synonyms>