195 entries under investigate topic. ×

1
go over with a fine-tooth comb(verb, expression, idiom, check, examine)
1
gouge out(expression, action, dig, probe)
1
grope(verb, check, examine, look, seek)
1
grub(verb, check, examine, look, seek)
1
hunt for(verb, expression, check, follow, examine)
1
jump into(expression, action, dig, probe)
1
kick the tires(verb, expression, idiom, study, check)
1
look about(verb, expression, follow, pursue)
1
look around(verb, expression, follow, pursue)
1
look up(verb, expression, phrasal verb, study)
1
mouse(verb, follow, pursue, seek)
1
nose(verb, follow, pursue, search)
1
notice(verb, study, check, observe, examine)
1
observe(verb, study, check, examine, review)
1
oversee(verb, study, check, observe, examine)
1
penetrate(dig, explore, research, poke)
1
pierce(dig, penetrate, explore, research)
1
poke into(verb, expression, check, examine, look)
1
prod(dig, penetrate, explore, research)
1
put out a feeler(expression, idiom, dig, penetrate)
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APASmart Define. (2016). inquire thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/inquire/thesaurus/synonyms
ChicagoSmart Define. 2016. "inquire thesaurus" https://smartdefine.org/inquire/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, inquire thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/inquire/thesaurus/synonyms>.
MLASmart Define. "inquire thesaurus" 17 February 2016. Web. 30 September 2026. <https://smartdefine.org/inquire/thesaurus/synonyms>